The hemp-eating linen weaver – Linaria cannabina

Don’t often see avian couples together…or more to the point, I don’t often catch them “on film” together. Here are Mr and Mrs Linnet (Linaria cannabina) at their residence in Rampton Pocket Park a few miles north of Cambridge. The bird’s English name comes from the species’ fondness for flax seed from which we make linen, the second part of its scientific name from its liking for hemp seed (Cannabis sativa). The bird is found across Europe into western and central Siberia and is non-breeding in north Africa and southwest Asia.

As you can hopefully see from my not particularly sharp photo the species is sexually dimorphic (the male and female are different): the male in summer has a red breast, grey nape, and red head-patch, while the females and juveniles lack the red colouring and have white underparts, with a buff-speckled breast.

Originally, the linnet was placed in the genus Carduelis, putting it squarely in with a finch grouping within the Fringillidae. Indeed, the linnet rather resembles the chaffinch and its high-pitched call (not always a “linnet-linnet-linnet”) resembles the jangling coins sound of the goldfinch. However, DNA evidence suggests that the linnet is not of the same genetics as the Carduelis finches and that it is on its own branch of the taxonomic tree of life. Hence, it is now in its own genus, Linaria, meaning linen weaver from the Latin.

There are several sub-species of Linaria cannabina in different parts of the world:

L. c. autochthona – Scotland
L. c. bella – Middle East to Mongolia and northwestern China
L. c. mediterranea – Iberian Peninsula, Italy, Greece, northwest Africa and Mediterranean islands
L. c. guentheri – Madeira
L. c. meadewaldoi – western Canary Islands (El Hierro and Gran Canaria)
L. c. harterti – eastern Canary Islands (Alegranza, Lanzarote and Fuerteventura)

Sciencebase popular photos on 500px

I’ve been on photo site/community 500px for years but only this year, with my focus on birds have I really got into the community. There are some stunning photos on there. And, it’s very gratifying to have one’s own photos seen and “liked”, of course. Here’s a contact sheet of my most popular snaps, all of which have had above a 95/100 pulse and a goodly proportion of likes from those that view them. In the array top row to bottom, left to right:

 

Sedge warbler | Female great crested grebe

Pectoral sandpiper | Avocets | Teasels | Common Kingfisher

Grey heron | Juvenile greylag goose | Female moorhen | Green woodpecker

Obviously, not all the photos I post on 500px are of birds, the vast majority are, but many of the insects, plants, landscapes and others do quite well, and in this case, the blooming teasels outstrip many of the avians. In my galleries at the time of writing: 92 bird photos, 43 general nature, 29 architecture, 18 flowers, 13 Misc.

Moving housemartins – Delichon urbica

Swifts, swallows, and housemartins (Delichon urbica) never seem to stop their flight once they arrive at our shores in the spring. Today, there was a whole flock of housemartins gathering on overhead wires in Aldreth, Cambridgeshire, to preen and perhaps make their plans for the long and perillous return journey to sub-Saharan Africa. Their summer of breeding and feeding in the British Isles and the European mainland nearing an end.

Yellowhammer – Emberiza citrinella

Often the way, you’re looking for one bird, when you hear and then spot another. Happens a lot with the yellowhammer (Emberiza citrinella). Today, I was walking a short distance along the Aldreth Causeway and could hear avian jostling over the floodbank, scrambled to the top, saw nothing but flittering wings heading into the scrub, turned around and encountered this yella fella, sitting among the seed heads, not twenty feet from where I stood, making his call…

It’s distinctive call, Mrs Sciencebase’s Dad always told her, sounds like the bird was passing out the post-war rations: “two-slices-of-bread-but-no-cheeeeese” (Story No. 237). But, Richard Smyth, my E&T stablemate, also shows his age in his book A Sweet Wild Note by suggesting it’s more of a “chika-chika-chika-chikaaaah”. It sounds very similar to the pine bunting with which it interbreeds and like a different avian dialect version of the reed bunting’s call. Either way the yellowhammer is a lemon-coloured bunting and definitely not a canary as one fellow dogwalker insisted!

The hammer part of its name comes from the German word for bunting, ammer, first recorded in 1553 as yelambre. Oddly enough the “Emberiza” part of its scientific binomial (the name a lot of people refer to as an organism’s “Latin name”) also comes from the Old German embritz, meaning bunting. Citrinella is an Italian word for a small yellow bird.

I got reasonably close to this male yellowhammer and perhaps captured the best few shots of this species I have taken to add to my bird gallery.

Hobby – Falco subbuteo

A pair of hobbies (Falco subbuteo) took up residence in an abandoned rook’s nest at “The Lodge” RSPB reserve some time ago. They hatched three chicks which are thriving and providing hours of entertainment for birdwatchers and staff at the reserve.

It’s probably another week before they fledge. Their diet seems to consist of mainly dragonflies from the moorish land around their lonesome pine although one photographer (Colin Severs) I met had footage of an adult tearing apart a swallow (Hirundo rustica) on a branch near the nest to make bite-sized nuggets for the offspring.

These birds are spectacular enough to have made it worth the trip to the reserve but there were also several buzzards (Buteo buteo) around including at least one juvenile, green woodpeckers (Picus viridis), common whitethroats (Sylvia communis), the family of bullfinches (Pyrrhula pyrrhula) purportedly also nesting near the hobbies remained elusive.

Also remaining hidden were the nuthatches (Sitta europaea) and treecreepers (Certhia familiaris). Apparently, a pied flycatcher (Ficedula hypoleuca) that had been showing well was predated last, perhaps by a jay (Garrulus glandarius). I’ve only ever seen one of these birds, dead on a footpath, many years years ago. Attending the birdfeeders around the site were blackcaps (Sylvia atricapilla), dunnocks (Prunella modularis), chaffinches (Fringilla coelebs), blue tits (Cyanistes caeruleus) with young and great tits (Parus major), and a solitary robin (Erithacus rubecula) and a lone magpie (Pica pica).

Birds on a summer’s evening dog walk

Evening dog walk in and around Rampton Spinney, pair of bullfinches (only one photographed), willow warblers, long-tailed tits, great tits, blue tits, and robins, all with juveniles. Reed warblers, reed buntings and whitethroats on the Cottenham Lode. Song thrushes in song, wood pigeons (obvs), yaffles (heard not seen), great spotted woodpeckers (seen my Mrs Sciencebase), blackbirds seen and heard, but blackcaps (maybe not even heard)…

American migrant – Pectoral Sandpiper

The pectoral sandpiper (Calidris melanotos) is a migratory wading bird that breeds in North America and Asia, winters in South America and the South Pacific, but also spends time in Siberia. However, you can see them in the UK and Europe. They’re often caught on Westerly winds and hit the British Isles from North America and on Easterlies that bring them in from Siberia.

Most commonly, they’ll be seen in late summer and autumn. There were quite a few on the wetlands at RSPB Titchwell in North Norfolk when we visited in mid-July. According to the RSPB, “It is the most common North American wading bird to occur here and has even started to breed in Scotland very recently.”

The sandpiper name refers to its call and to its shoreline existence while the pectoral refers to the bird’s brown breast band. The scientific binomial is from ancient Greek: kalidris or skalidris was a term used by Aristotle to refer to some grey-coloured waterside birds while melanotos is from melas meaning black and notos meaning backed.

Originally, in this post, I’d displayed a photo I took of what I assumed was the Pec Sand, but on later inspection turned out to be a Ruff, so I’ve removed the photo.

Just caught this thieving young magpie

Eurasian magpies (Pica pica) obviously have a special place in the heart of any Geordie, their black and white plumage with a hint of blue being the football strip colours of Newcastle United, obviously.

The birds’ reputation as thieving magpies is misplaced, although like most corvids (crows), the bird is attracted to objects such as coins and buttons which it might use to decorate its nest or simply collect because they imagine such objects are seeds.

As I think I’ve mentioned before, corvid cognition is much higher than one might anticipate based on brain structure of these descendents of the dinosaurs. Crows seem to be far more intelligent than our understanding of the brain based on mammalian biology (think clever rats and monkeys) suggests. The same also applies to parrots and related species and perhaps all birds.

These photos were snapped of a juvenile on one of the jetties overlooking an old gravel pit pond at Milton Country Park north of Cambridge. The bird was stood on the fence and started doing his song and dance routine when he saw us and the dog. It was a bright, but fairly grey day and his bright white and deep black means getting light readings and setting bracketing for a decent shot before he flew off was next to impossible. I quickly fired off as he squealed and flapped and then nudged the levels in the photos to get the most dramatic tones.

Incidentally, my reference to them being shy is that usually adults out in the countryside will take to the air and head for the middle distance or the nearest trees almost as soon as they see you, which is often before you see them. This youngster was in a relatively busy area and maybe hadn’t yet learned to recognise the risk of dogs and humans.

RSPB Ouse Fen Reserve

UPDATE: There are several accessible chunks to this reserve now in addition to the Needingworth side: The Over side, which is the shortest route to the Reedbed Trail via a very rough drove, parking is potholed, but the section is beautiful, the Earith entrance which is relatively new, good parking. Also, you can access the Barleycroft Lake section from another reserve RSPB Berry Fen. At some point, these will all be joined by trails so you should be able to park in Earith and wend your way through to the Reedbed Trail, across the Great River Ouse and through the Needingworth side.

I am bit reluctant to tell you about the little jewel I have found. It’s not three quarters of an hour’s drive from Cambridge. Although the title of this blog post sort of gives it away…

It’s a lovely picturesque place, lots of decent footpaths, trees, ponds, hedgerows, reed beds, and lakes, and lots of bird life. And, there was nobody else there almost the whole time I wandered around, I only saw one couple when I arrived and a couple of people as I was leaving.

Admittedly, it’s a former gravel works/quarry and is flanked by active quarrying, which is feeding materials to the A14 roadworks, I reckon. The site will no doubt be rendered as a nature reserve when they have scooped out the last of the shingle and sand. Of course, many a nature reserve emerges from quarried land, better than it being used as a landfill site.

Anyway, we had hail this morning, thunder and lightning, and torrential rain. My plans to visit were almost scuppered, but the clouds cleared a little and I jumped in the car, camera in hand. By the time I got there the clouds had regrouped and it was spitting with rain, half a mile into the reserve and there was thunder and no little lightning. I was too far away from the Faraday cage of my car, so I clung to the hedgerows and kept camera dry in my coat until the storm passed and the clouds broke again. By mid-afternoon it was too hot and I had no water.

So..the birdlife, lots of green woodpeckers (Picus viridis), juvenile pictured above. They’re also known as yaffles around here and generally feed on ants along the footpaths and on the clear spaces, there were common terns winging it over the lakes, moorhens, swans and numerous reed warblers (Acrocephalus scirpaceus) in the, you guessed it…reeds (top photo). I inadvertently scared a buzzard (Buteo buteo) from its woodland perch into flight, I turned out of that wooded area and caught sight of a red kite (Milvus milvus) pictured below. You’ll notice both of those latter scientific binomials are tautonyms, that means they repeat the first part of the name and it implies that this species is the “type” of the family, the achetypal species one might say.

I heard at least a couple of turtle doves (Streptopelia turtur) in the undergrowth of another wooded area, but didn’t see them. Saw one or two reed buntings (Emberiza schoeniclus), but heard many more. Rare was the sound of chiffchaff (Phylloscopus collybita), until after three hours of walking I’d got back to the car. I don’t think I heard nor caught sight of a willow warbler (Phylloscopus trochilus) at all.

In abundance, however, were goldfinches (Carduelis carduelis), another tautonymic bird, whitethroats, blackbirds, starlings, long-tailed tits, great tits, blue tits (all three species with juveniles in tow), wood pigeons, wrens, lapwings, yellowhammers, dunnocks, common tern (below) and a few unidentified LBJ (little brown jobs). There were even oystercatchers around.

More intriguing though were the warbler-type birds at the farthest point away from the (free) car park. I certainly saw a few more reed warblers, perhaps a sedge warbler, in this area of the reserve (the reedbed trail). But, looking at the shots I got I cannot positively identify some of them as they were flitting among bushes and out of sight. Others, it turns out, are whitethroats (Sylvia communis). The barbed shot below is a juvenile, Mrs Sciencebase suggests.

Now, I’ve told you about the place, I would recommend a visit if you enjoy the peace and quiet of a nature reserve, although there is a bit of industrial traffic and the endless churning of the gravel conveyor belt for the quarry, but don’t let that put you off. Looking at the RSPB map for the site, I see now, that in my three hours, I only saw half the site, so another visit is needed…might even get a shot of an adult yaffle!

Don’t miss the beauty of the kingfisher

The common kingfisher (Alcedo atthis) I wrote about earlier in the year seems not to have taken up long-term residence where I photographed a female in January 2017. Mrs Sciencebase and myself saw others at WWT Welney, as one might expect. But despite watching and occasionally searching, even at a local nature site called Kingfisher Bridge, we didn’t see another until a trip to the National Trust site at Wicken Fen.

Common kingfisher

Over the pond at the Roger Clarke hide there was a family – male, female and three fledglings. Mrs Sciencebase saw all five while I was staring through a zoom lens and photographing the male who alighted on a branch very close to the hide.

I was hoping to find a current piece of scientific research about kingfishers to share. There was something last year about the kingfisher and other piscivores and tracking the foods they eat, but that wasn’t as interesting as scientific research that suggests that “kingfishers prey upon the most accessible types of prey.” Not quite the earth-shattering breakthrough I was hoping for, basically tells us that kingfishers minimize their energy expenditure when foraging…well, don’t we all?

The common kingfisher’s scientific binomial (the monicker most people call an animal’s “Latin name”) is Alcedo atthis. The word Alcedo is indeed Latin for kingfisher and is derived from the Greek word for kingfisher “halcyon”.

Atthis was the name of a beautiful young woman who in mythology lived on Lesbos and was a favourite of Saphos.