Biology – Page 14 – David Bradley

Do this if you want your photos to really take flight

TL:DR – Tips on choosing which photo to process how to denoise and sharpen software, adjust levels, and crop.

Recently, I wrote about the beautiful Short-eared Owls that turned up on our patch over-winter in the slightly warmer climes of the Cambridgeshire Fens. I got photos of three hunting in the hour before dusk. The photos were okay, but I knew I could make them better with a few simple tools.

UPDATE: The SEOs are back. At least six of them on the fen. I got a few more shots late November 2023 including this one of a grumpy-looking Shortie that had just missed catching a vole.

Short-eared Owl hunting over the fen — Short-eared Owl hunting (unsuccessfully at this point) over the fen

The problem is always hand-holding a big lens when the light’s fading. There’s camera shake and a short shutter speed is also needed to freeze the action. This adds up to the camera switching up the sensitivity, the ISO, and that makes for more photographic noise.

So, what can you do to improve a noisy photo that might also have a bit of motion blur. First off, you must make sure you’re shooting in RAW mode. RAW mode lets you download what is essentially an unprocessed digital negative of the photo you took.

I’ll run you through what I do with the RAW files out of my camera. First, I select from the photos the one I think is the most dramatic or has the most character, the best light, the sharpest. I also try to pick one that doesn’t have distractions like foreground twigs or foliage or a cluttered background. Often your choices are limited with bird flight photography as the birds appear on their own terms and where you happen to be standing at the time determines a lot of that. A slight movement left or right might help sometimes in terms of foreground and background.

So, I’d picked this photo as the best of one of the owls flying in front of me. It was fairly close. Background isn’t too bad. The blurred building in the background almost adds to the composition although might have been more appropriate if it were a Barn Owl. That stem in the bottom left is a distraction and could do with being removed. We’ll see.

The original photo was shot at 600mm zoom, 1/3200s shutter speed, f/6.3 aperture and ISO 6400. That ISO number is way too high and I might’ve got a similar result if I’d used a slower shutter speed to get the ISO down a few stops.

I resized the photo to fit the website, but other than that with this first view it’s not cropped nor processed or edited other than a basic RAW to JPG conversion to make it displayable and to add my logo. The website loads the image as 1024 pixels wide with a JPEG compression of about 90%. It’s quite noisy, not as sharp as it could be, the levels (contrast, brightness, saturation etc are not optimised). And, in terms of composition, it’s not how I’d want the final photo to look.

TOP TIP: Push the sliders on whatever adjustment you’re making to the point where it is immediately obvious that you’ve made an adjustment and then claw them back ever so slightly. This way you will hopefully avoid making the photo too painterly. If you’re having to push anything beyond about 12% of the way up, then it might be worth abandoning the photo, unless you’re after a painterly effect.

So, stepping back I first feed the RAW file to DxO PureRaw. This removes a lot of the noise from any photograph really well. It also applies basic corrections that are known to be needed for the specific camera and lens setup used. I’ve zoomed in on the program in action so you can see, on the left just how noisy the photo was originally, and in the right of the frame, how well the noise reduction works.

The frame below is that same image saved in DxO PureRaw. Hopefully, you can already see some improvement from the original RAW capture above and displayed at the same composition. PureRaw lets you export as a DNG file, which is like a generic RAW format so you can do the subsequent processing as if the file were fresh from your camera.

At this point, I generally make an important choice. I can either simply open the denoised image from DxO in my photo-editor (PaintShop Pro) or add another step and open it in Topaz Sharpen AI. This software does denoising too but it can also sharpen and remove motion blur. Either way, at this point, I would first crop the image to give me the composition I would like in the final image and perhaps mirror the image so that the subject is facing in a more pleasing direction (flying left to right is better to my eye than having the bird fly off to the left.

The following photo is cropped and reversed to give me the composition I am after. I’d usually do a square crop for Instagram.

I am quite happy that this image is fairly sharp and so I won’t apply Topaz in this instance. Instead, I will use PSP to adjust various parameters: Overall brightness (raised 14%), shadows (up 10%), and highlights (no change). Saturation up 8%, Focus/sharpening up 66%. I’ve left the white balance as it was. I then brought in the blacks by 6% and the whites by 4%.

I then raised the vibrancy, which is an adjustment related to saturation but slightly subtler, I gave that a 12% boost, which I think gives the photo even more of a “golden hour” glow. Also added a few percent of “fill highlight” and boosting “clarity” by about 10%.

That grass stem sticking up from the bottom right is a bit of a distraction, so I removed it using what PSP calls the Scratch Remover tool. PSP also has a tool called Magic Fill which can do a much better job of removing objects from a photo if they’re not simple, thin lines.

Once all that’s done, the final couple of steps are always to apply a moderate “unsharp mask” to make the final image even crisper and then to add my dB/ logo.

So that’s probably as far as I’d take it. To my eye, it looks fine. At the very least, it looks a whole lot better than the RAW original, but that’s to be expected, you don’t expect to look at negatives instead of prints of photos. All photographs have to be developed, they always have been, in the digital age, we have more sophisticated tools to do the job for better or worse.

When looking close up at the originals (pixel peeking), I can see marked improvements with each stage of the above processing and would be confident that cropped closer it would still print nicely in a print magazine, screening at 300 dpi, at up to 6 inches width, but perhaps no bigger in this case.

Just for completeness, I did do a Topaz process on the DxO output and it does reduce the speckles of noise still further. However, there was also a bit more of a loss of detail. The image below was DxO then Topaz and then the same PSP processing as before. I cropped it a bit tighter for what I might use as a photo to accompany an article about this species, or owls in general, showing a bit less of the fenland background.

Instagram-ready version below

DxO and Topaz are the leaders in terms of denoising at the moment, I’d say. I prefer what DxO does though, but Topaz has the sharpening options that DxO PureRaw lacks. I trained on Photoshop but have stuck with PaintShop Pro for editing for many years, PSP has almost all of the same tools as Photoshop for the basic processing I do. Lightroom has advantages and there are, of course, many alternatives out there to all these programs. I must confess that I usually use SnapSeed for photos on my phone and sometimes for a landscapes, architecture, flowers, moths etc. I might do use the above workflow but then open the file on my phone in SnapSeed to bump what that app calls “Ambience” and “Structure” and adjust saturation a little more.

Short-eared Owls on the Fens

TL:DR – Information about and photos of local Short-eared Owls.

I’ve discussed the Short-eared Owl, Asio flammeus, previously. Beautiful bird that occasionally overwinters in the UK, having spent the summer months in Iceland, Russia, or Scandinavia.

We are lucky to see them hunting on the fens sometimes. These photos were taken in the hour before sunset at NT Burwell Fen. There were three shorties hunting.

We usually anticipate their arrival in October, November, but they can sometimes arrive earlier and will stay until early April. There were half a dozen at Burwell a couple of years ago and one of them with damage to its wing (it could still fly) stayed through the summer months.

Shorties will hunt over fens, grasslands, marshes, and other open habitats. In my experience, the best time to catch sight of them hunting is in the hour before sunset, but others report seeing them at any time during the day when the owls hunt small mammals such as voles, mice, and shrews.

The owl has a distinctive, buoyant, and “floppy” flight style, they usually follow a “flap-flap-glide” flight pattern, and will often perch on fence posts or bushes, looking out for moving prey. They will often perch quite close to birdwatchers and photographers.

Also see on the same trip to Burwell Fen – Peregrine (in flight over the Wicken side), several Common Kestrel, Barn Owl, and Common Buzzard.

Fowl play: old gravelpits as birdwatching hotspots

TL:DR – Gravel pits that have been converted into nature reserves can offer some lovely scenery and the opportunity to see interesting and even rare wildlife.

There are lots of old gravelworks in our area some of which are earmarked as nature reserves as I’ve mentioned before, a couple of times, and some are used as fisheries. Where there’s water and reeds and trees there will most likely be birds regardless of the anglers or visitors.

Great White Egret perched on a half-submerged tree stump

On this almost sunny Friday morning, I headed to the fishery lakes adjacent to Meadow Lane, St Ives – known to some as Meadow Lane Pits. I was hoping to see and perhaps get photos of the five Smew, a type of diving duck, that had turned up there earlier in the week. Birders had reported three drakes (males) and two females, known among birders as “redheads” for their obviously different appearance to the males.

A female "redhead" Smew flanked by two drakes — A female “redhead” Smew flanked by two drakes, an additional redhead and another drake were on the water nearby

I parked up and trekked around the muddy footpaths, trouser bottoms tucked unfashionably into my walking socks, to try and catch sight of the Smew. En route I saw (in no particular order) Tufted Duck, Black-headed Gull, Bullfinch, Starling, Blackbird, Gadwall, Little Egret, Goldeneye, Egyptian Goose, Wigeon, Great White Egret, Great Crested Grebe, Lesser Black-backed Gull, Grey Heron, Great Spotted Woodpecker, Coot, Cormorant, and at some point quite early on, one or two of the Smew, and then all five.

Old gravel pits, particularly those that have been allowed to fill with water, can be nice spots for birdwatching for various reasons. First, there is the potential for habitat diversity. Gravel pits can develop a mix of habitat types, including open water, reedbeds, mudflats, and vegetated areas. This can attract a variety of bird species but it also cultivates large numbers of invertebrates as well as small mammals, amphibia, and fish which can all thrive there if given the chance.

Where old gravelpits have been managed there are often large areas that are not open to the public, so there can be far less disturbance to the wildlife in those areas and along the margins this spills over into the publicly accessible areas. As they mature, these old gravel pits often become tranquil areas of scenic beauty. Many are rather peaceful, hardly see any visitors, have attractive vegetation and in short, the overall combination of habitat diversity, food availability, and lack of disturbance make them excellent spots for a bit of peace and quiet and a spot of birdwatching.

New Year in Norfolk 2023

TL:DR – New Year trip to North Norfolk – diary entry blog post.

As has been our habit for the last few years, we have eschewed the midnight festivities of New Year and escaped to the coast. This time, we straddled the New Year with three nights in a cosy cottage in Wells-next-the-Sea. We enjoyed the local hostelries in the evenings during our trip, but the main focus was to walk as far as we could manage each day (usually 7 or 8 miles) and to take in the birding and other sites of nature en route.

Pallid Harrier in flight over marsh edge at Warham, Norfolk, about 1200 metres from the camera — Record shot: Pallid Harrier in flight

Wells, Warham, Titchwell, and Holkham Gap were the main areas, beach, woodland, marsh, and nature reserve. A couple of Muntjac (one deceased), two or three Grey Squirrel, half a dozen Grey Seal, and 1001 dalmations and others dogs were the limited list of mammals we saw.

Red Kite with fishy prize — Red Kite, Holkham Gap

The birding list was much better as you’d expect, for starters, we saw a rare vagrant over the marsh at Warham east of Wells, a Pallid Harrier, along with a couple of Hen Harriers on the same marsh. It was dull and grey at that point and the low-light photos of the harriers are just my record shots.

The Pallid Harrier, Circus macrourus, is a migrant that breeds in Eastern Europe, Iran, and central Asia, wintering in India or Africa depending on its migratory wont. It is rare in Western Europe and the UK, but occasional vagrants are ticked here. That said, the species is now known to have bred in The Netherlands (2017) and Spain (2019). A changing world means a changing world for the birds too.

We saw dozens of other species (around 80). Many of those we had seen before, some many times, but one was rather special and we’d only seen it once before, in Poole Harbour in the autumn of 2022 – White-tailed Eagle. An immature specimen flew over us as we were heading back along the beach to Holkham Gap from the westward marsh end of the patch. The bird itself was heading to its roost on the marsh where it had been reported at roughly the same time for the previous couple of days. We don’t know at this point whether the bird we saw was one of the two we saw in Poole, these Isle of Wight reintroduction birds do cover a lot of ground on their travels.

Archive shot: Immature White-tailed Eagle in Poole Harbour

On a smaller scale, but much more numerous, we had some lovely views of visitors from The Arctic, Snow Buntings (30+), which are distant cousins of the Yellowhammers and Reed Buntings. We also saw Shorelarks (about 11) at Holkham Gap despite the best efforts of uncontrolled dog walkers to repeatedly scare the birds away.

Parial flock of 30+ Snow Bunting, Holkham Gap — Flock of Snow Bunting, Holkham Gap

Below is the, hopefully complete, list of birds we saw, we may have a few others that we may have glimpsed in passing but are not claiming for the list, Grey Partridge, Bullfinch, Whooper Swan, Sparrowhawk. There were no feeders at the RSPB Titchwell cafe area on this visit, so no sighting of Coal Tit on this visit.

Grey Plover in flight along the coast at RSPB Titchwell — Grey Plover

Avocet, Black-headed Gull, Bar-tailed Godwit, Black-tailed Godwit, Blackbird, Blue Tit, Brent Goose, Buzzard, Cetti’s Warbler, Chaffinch, Collared Done, Common Scoter, Coot, Cormorant, Curlew, Dunlin, Dunnock, Egyptian Geese, Goldcrest, Golden Plover, Goldeneye (F), Goldfinch, Great Black-backed Gull, Great Crested Grebe, Great Tit, Great White Egret, Grey Heron, Grey Plover, Greylag Goose, Hen Harrier (ringtailed: F or Juv), Herring Gull, House Sparrow, Jackdaw, Jay, Kestrel, Kingfisher, Knot, Lapwing, Lesser Black-backed Gull, Little Egret, Little Grebe, Long-tailed Tit, Magpie, Mallard, Marsh Harrier, Meadow Pipit, Moorhen, Mute Swan, Oystercatcher, Pallid Harrier (NFM 2023), Pheasant, Pink-footed Goose, Pintail, Pochard, Red Kite, Red-breasted Merganser (pair, twice to locations), Red-throated Diver, Redshank, Reed Bunting, Ringed Plover, Robin, Rook, Rough-legged Buzzard, Sanderling, Shelduck, Shore Lark, Shoveller, Skylark, Snow Bunting, Starling, Stock Dove, Stonechat, Teal, Tufted Duck, Turnstone, Water Rail, White-throated Diver, Wigeon, Wood Pigeon, Wren.

Ringtail Hen Harrier in flight at Warham, Norfolk, over the marsh bridge — Record shot: Ringtailed Hen Harrier

I fed this article paragraph by paragraph to an AI chat bot, ChatGPT, and have put together a post showing the call-and-response artificial conversation I had with the bot. I also followed up that article with a bit of discussion about AI and its role in human creativity and innovation. But, and here’s the clever bit, I didn’t provide my own thoughts, I asked the bot a question and it came up with an answer for me.

A Blackcap in Winter

TL:DR – The Blackcap, Sylvia atricapilla, is commonly a summer visitor to the UK from sub-Saharan Africa. But in recent years, some birds that spend their summers in the east of Europe and would normally head for the Iberian peninsula or North Africa in winter have reached the UK where they found winter food on bird feeders. There is now evidence that these birds that overwinter in the UK are not mingling with the Iberian or African overwinterers when they go back to their breeding grounds in east Europe.

UPDATE: As of 13th March 2023, the male Blackcap that overwintered since mid-December in our garden is still here. The outside temperature has gone from freezing to about 17 Celsius, but he is showing no signs of departing just yet. He enjoyed mistletoe berries, pyracanthus berries and now most of those have gone, he pecks at suet balls in a feeder right outside our living room window.

It’s no wonder this little fellow looks so grumpy perched next to the mistletoe growing on our rowan tree…most other Blackcaps will be enjoying a much balmier winter on the Iberian Peninsula or even in Africa. We have had Blackcaps in our garden in winter for several years now. Never see them in the garden in summer though. We had a male and a female last winter. So far this winter, just this solitary male.

In recent years, a lot of migrating Blackcaps (Sylvia atricapilla) have headed west from eastern Europe for the winter instead of turning south. Their compasses seem to have lost calibration, perhaps due to climate change, but other factors may be at play. The species seems to be affected by climate change, a decalibration of their internal compasses, and perhaps moreover by the British wont to stock garden bird feeders and put out fat balls, which is not such a common practice on the continental mainland.

When they head back to their mating grounds in the spring, they are marginalised by the southerners it seems and two distinct groupings are observed. This is an early process in speciation whereby in the long-term we might see a sub-species emerge that no longer mates with the other.

Whatever happened to that birding book you were writing Dave?

TL:DR – I compiled a sampler for a newbie birding book with ten chapters, but I am yet to write the remaining 90.

Back in August 2017, I was all hyped about putting together a new book. It come up with a title, Chasing Wild Geese, and the plan was to write a short piece about the hundred birds a novice birder might “tick” first in the UK. Each item would be illustrated with one of my photos of said bird.

Chasing Wild Geese, the gosling book cover — Chasing Wild Geese, the gosling feather book cover

I put together a taster, with the first ten written and formatted and even did a spoof bio page in the same style about yours truly.

I gave the cover a silly acronym: FEATHER. This stood for “Food Environment Aural Type Habitat Etymology Resemblance” and was a summary of the contents of each page.

I shared the sampler widely on social media and estimate that between six hundred and a thousand people downloaded the PDF file from my website. It’s still available if you’d like to take a look, here. I spoke to my publisher and ideas were batted back and forth. Ultimately though, the likely costs of producing a full-colour photographic book of this sort we agreed were likely to have been prohibitive at the time, so sadly, I put the Geese on the backburner and turned my attention to other writing, photography, and more songwriting.

In the meantime, there have been several similar books on the market from far more expert birders and better photographers than me, any one of which would easily have outsold the honking Geese. I do now have better photos of all the birds in the sampler, and at least a couple of hundred other birds that might have featured in a follow-up…maybe if I stop chasing it, it will come home to roost. We’ll see…

Starling Murmurations

TL:DR – Fundamentally, starlings murmurate because they enjoy it, it’s instinctive behaviour, but there will be reward feedback loops in their brains that drive the behaviour that’s almost beyond doubt. But, the phenomenon is in their instincts to help protect them from raptor predation.

I’ve talked about Starling murmurations several times before here. They are a fascinating, exciting, wonderful natural phenomenon with a lot to teach us about animal behaviour and perhaps even fluid flow! There are two spots on the outskirts of our village here in South Cambridgeshire where you might see a murmuration.

There is a reedbed in the balancing pond that supports drainage from one of the housing estates and then there’s a similar pond on the edge of the local recycling centre (rubbish dump). I’ve mentioned the Red Kites that frequent that site too in an update to an old article. It was while seeking out and finding 20+ Red Kites a couple of weeks ago that I noticed the Starling numbers were building on the same patch, with two to three flocks of several hundred birds swooping around the farmland that abutts the dump.

We walked there again yesterday so I could photograph the Red Kites again. We saw at least 20, along with a couple of hundred Redwing and dozens of Fieldfare, and a Buzzard harried by the Red Kites. There were a lot more Starlings, three fluxional flocks of several hundred each. At one point, hundreds were in the hedgerow when a raptor interrupted their chirruping and chatting and they whooshed into the air en masse and murmurated to distract and confuse the bird of prey.

I got a few photos one of which shows a large flock moving in unison. I estimate about 1500 birds in this photo and there were perhaps two other flocks of maybe about a half to two-thirds the size. I’d suggest that this patch has at least 3000 birds. It will be worth another visit towards dusk to see them bed down to roost among the reeds, also might be worth getting up at dawn to see them rise as a single mass from their roost. My estimate of 1500 in this photo was corroborated by a proper birder friend with far more experience of counting than I.

Apple of Sodom

As regulars to the Sciencebase site will know, I’ve been doing some ad hoc wilding of our garden for a few years now. Always hoping that blooming wildflowers would attract interesting invertebrates. There are therefore patches and pots that I’ve not managed with all sorts of odd things sprouting from them at different times of year. At the moment, there is a big tub, which used to be crocuses and daffodils that has a very tall and leafy plant growing in it at the moment, with pale-purple flowers in bloom (it’s November!).

I used the ObsIdentify app to take a couple of photos and it turns out to Apple of Peru, Nicandra physalodes. The species is also known as the shoo-fly plant (it repels aphids and other flies and although toxic is sometimes rubbed on the skin as an insect repellant. It’s also known as the Apple of Sodom, presumably somehow that relates to its encapsulated poisonous fruit.

As the name would suggest, Apple of Peru is a native to South America, self-seeds easily, and is sometimes grown as a decorative annual. I didn’t plant it, seeds from some outside source presumably landed in the tub and it’s grown where it fell. I think it’s meant to be in bloom from April to July, usually in tropical and sub-tropical climes rather than the temperate zone, so not entirely sure what it’s doing with open blossom now and setting fruit in the middle of November in England.

First BLANK of the winter

Fellow mothers, those who light up in the hope of seeing interesting nocturnal Lepidoptera will know only too well the feeling of disappointment when they check their trap the morning after the night before only to find not a single scaly-winged friend within. A BLANK.

Last night was wet and chilly, early evening it had been dry, cloudless, and chilly, with a bright moon. The local primary school also did their annual fireworks extravaganza. None of this had any bearing on the moths, they just weren’t flying into the trap. So, my first BLANK since last winter. Null results are, of course, scientifically just as important as hits. It is logged in my spreadsheet and will be seen by our County Moth Recorder, Bill Mansfield, in due course.

Meanwhile, here’s a photo of the beautiful and enormous Blue Underwing, better known as the incomparable moth from Cliveden House, the Clifden Nonpareil. Came to my garden in September 2020.

#TeamMoth #MothsMatter

ChatGPT words about mothing:

Moth trapping is a technique used by lepidopterists to collect and study moth species for scientific research. The most common method of moth trapping is the use of a light trap. A light trap is a device that uses a light source, usually a bulb or LED, to attract moths at night. Moths are attracted to the light and fly towards it, eventually getting trapped in the trap. Other techniques include pheromone traps, which can be used to attract day-flying moths. Also sugaring, which involves pasting a strong-smelling sugary, often alcoholic, mixture on to outdoor surfaces to attract moths that less interested in light sources.

Here are some tips for effective moth trapping:

Choose a good location: Moth trapping is most effective in areas where there is little to no light pollution. The trap should be placed in a location where it is easily accessible but away from human traffic.
Use the right equipment: A light trap should have a bright light source that emits light in a specific range of wavelengths. The trap should also have a funnel or cone-shaped entrance that leads to a holding chamber or container.
Check the trap regularly: Moth trapping should be done at night and the trap should be checked regularly to avoid overheating or overcrowding of the moths.

Why do moth-ers sometimes have blanks?

Weather conditions: Moths are more active in warm and humid conditions. If the weather is too cold or dry, the number of moths that are active and visible may be reduced.
Moonlight: Moths are known to be attracted to light, but they are more attracted to artificial light than natural light. If the moon is bright, moths may be less attracted to the light trap.
Migration: Some species of moths are migratory and may not be present in a particular area during certain times of the year.
Habitat destruction: If the habitat where the trap is located has been destroyed or altered, there may be fewer moths in the area.

December will be magic, again

I’ve waited patiently for one particular species of moth to turn up in the garden and the night before Halloween 2022, it made its inaugural appearance, drawn to a 15-watt fluorescent, ultraviolet lamp – the December Moth. Poecilocampa populi (Linnaeus, 1758). If the name seems anachronistic don’t blame me. The Lepidoptera textbooks tell you it can make an appearance any time between October and January, peak is mid-November.

When I first started mothing back in late July 2018, I hinted to one of the very experienced enthusiasts I know, a guy called Leonard Cooper, that I’d probably switch off the lamp and put the trap away for the winter. His retort was one of shock and awe, “What, and miss the December Moths!?!?”. So I didn’t and I kept lighting up almost all the way up to Christmas. That year and for the three subsequent seasons I didn’t see a December Moth. I did see a few November Moths, however. They are a very different affair.

Where the December Moth is a chunky and fluffy, lasiocampid*, type moth, with a strand of what Mrs Sciencebase referred to as Christmas lights on its wings, the November is a grey geometer moth. In fact, the November is not really a single moth, there are several species that are superficially identical – November, Pale November, Autumnal Moth, and Small Autumnal Moth. Unless you examine their DNA, raise them from larvae, or examine the males’ genitalia, you cannot know for sure which of the three you are looking at and they are generally recorded as November agg, or more properly Epirrita sp.

Anyway, I am glad I took heed of Leonard’s lament and also pleased that my lighting up into the winter was also useful to another moth expert, our County Moth Recorder (CMR) Bill Mansfield, who urged me to continue logging Lepidoptera at least periodically through the winters for the scientific benefits. Moths are a very useful indicator of ecological health and so monitoring their diversity and numbers is useful not only because #MothsMatter but for the wider world of biology so that we can understand how climate change, habitat loss, and other factors are affecting the world around us.

The larvae of December Moths feed on birch, oak, elm, lime, and, indeed, most species of deciduous tree. There is certainly a handful of oak and lime not too far from our garden, so the arrival of a December Moth, at long last, was not to be unexpected. The arrival felt likely as the moth is widespread in the UK and especially as another oak eater, the green and black & white moth with the formidable name Merveille du Jour had turned up in previous years.

The Lasiocampidae are known in the vernacular as eggar moths because of the relatively large size of the eggs laid by the female. Others in the group include the Oak Eggar, Grass Eggar, Fox Moth, The Lappet, The Drinker, and The Lackey.