The Emperor returns

I have a pheromone lure to attract the male of the lepidopteral species Saturnia pavonia, also known as the Emperor moth. It’s a beautiful creature. The male flies during the day drawn to the sex attractant exuded by the night-flying and less brightly coloured female. I’ve photographed them on the wing in the garden previously and also on a stage with a macro lens, as regular Sciencebase readers will know.

I only put the lure out for a few moments once a week or so, but it never fails. A couple of males turned up today within 20 minutes of the pheromones being released. One of them ended up in the conservatory, frantically flapping on a curtain for a few moments, so I got some fast shutterspeed (1/4000s) shots of him before giving the curtain a bit of a gentle flick to send him on his way and putting the lure back in the freezer until next week. It’s wonderful to know that these beautiful creatures are going about their lives with no care for our human woes.

Wren – Troglodytes troglodytes

As regular Sciencebase readers will be well aware, I often work from my laptop in the garden in the summer time, when the weather is fine…I reach right up and grab a camera sometimes…

Showing well today, a rather bold Wren, Troglodytes troglodytes, munching on grubs and caterpillars from various bushes and not worrying too much about my presence. I’ve been making efforts to let the garden go a bit wild, without it simply turning into a couch grass, thistle, and nestle patch. Lots of wildflower seeds are in, the pond is buzzing. Red Valerian and Green Alkanet are thriving, foxgloves are about to burst into bloom (hopefully). There are bird seed (mixed, sunflower, nyjer) and fat (suet) feeders aplenty.

Kingfishers at Dawn

Kingfishers at dawn…well…it wasn’t quite dawn. We awoke at about 7am had a cuppa and then headed out to a very local patch of waterway we know to see if we could spot the Kingfishers going about their business, all part of our once-daily exercise allowance under Covid-19 lockdown, social distancing, self-isolation rules.

We avoided touching any styles or fences, there were no other people around to avoid, apart from a farmer, just as we had finished our exercise. Anyway, combining photos from first thing last Sunday morning and today in this post

Nest Watch

Fans of the Facebook page may have seen the various Live broadcasts I’ve done in the “Watch” series, all very tongue in cheek and an excuse for me to broadcast some of my music or offer some relaxing video – there’s been PondWatch, LawnWatch, FeederWatch, and the fascinating ShedWatch.

Today, I once more put my phone on a tripod and pointed it at a feeder hanging in our apple tree for SuetWatch. Robins, Erithacus rubecula, have been pecking at this all week. I hoped to catch them on video. I don’t think I did, but when I went to terminate the video I noticed for the first time a nest in an old homemade nest box hanging on the shed. I wondered whether it was the Robins, so pointed the phone camera there and stepped back so as not to disturb the birds.

A quick scan through the video revealed a Dunnock, Prunella modularis, sitting on top of it at one point, so perhaps most likely that bird’s nest rather than that of the Robin.

The footage is awful and the bird activity so brief I won’t bother posting it. But, do take a look at my Facebook as there will most likely be more in the Watch series coming soon…

Dave Bradley on Facebook here.

A song for Florence

A quick demo version, sung live of a song about the Covid-19 lockdown, how we’re coping, and where we go from here…

Initial nudge was from Rachel, a fellow Tyrannochorus soloist and she contributed some of the lyrics as a little music exercise in which we indulged to pass the time

A song for Florence

Have we had enough?
Can you see what we’ve become?
Were we completely numb
To the breakdown of everything we loved inside?

Are we brave enough?
To stay together while we’re apart…
Can we summon the heart?
Drawing on our strengths from deep inside

In lockdown, we stay at home but not silent
Thinking about the time when we will rise…again

Give us the air that we might breathe
The scent of rainfall on the trees
Don’t you know that we really oughta agree

Bring us the life that we might see
The sunrise on a brand new dawn
Show us how to be free again

Are we brave enough?
To stick together when we’re apart…
Can’t we muster the heart?
To pour our love out to the other side

But, the good we do now
And the paths down which we start
Can we get to the heart?
Of what he really means to be alive

Here come the viral curtain twitchers

Great to see the police have put a form up online so that we can report on breaches of lockdown rules…but, how do you know that your neighbour, for instance, is actually breaking the rules?

Say you have a keyworker living next door to you, but you didn’t know they are a keyworker. They leave their house entirely legitimately but more than once on a given day. The first time is as part of their important public service work, the second time to take some brief exercise around the local areas avoiding the incessant stream of new joggers on the paths that seem not to care about social distancing and spatter you with sweat as they plough through. Your neighbour was hoping to have a bit of a brain reboot during their exercise allowance to help them cope with the viral situation and the pressures of their work.

You log this in your little logbook from behind you twitching net curtain.

The police receive your report and assign a constable to check it out. They discover your neighbour was well within their rights to do their job and to take their daily exercise away from their home. An hour of that copper’s time less than well spent, one might suggest.

Meanwhile, a bunch of friends has gathered together in a back garden a few doors down. There’s music, but it’s quiet, for now. They’re having a barbecue to celebrate being furloughed on full pay and clinking glasses of punch, double dipping their tortilla chips in the hummus, and generally having a pathogenic time. One of them is looking a bit sweaty though and seems to be coughing a lot…but you can’t see any of that…

Important breathing advice for Covid-19 sufferers

A doctor at Queen’s Hospital offers some self-care advice for people with Covid-19 to help prevent pneumonia developing. The bottom line is that you need to keep your lungs working as well as they can.

1. Sit up, take a deep breath, hold it for five seconds. Do this five times and on the fifth breath, have a good cough into a tissue or cloth and safely bin it. Repeat this whole procedure. This will all help expel fluid/mucus from the lungs.

2. Lie on your stomach and breath fairly deeply for ten minutes. The main mass of your lungs is actually closer to your back than the front of your chest so this presumably allows them to fill even more efficiently than they do when you’re supine. The exercises will keep up the strength in your breathing muscles.

3. Repeat instructions 1 and 2 regularly.

Breathing exercises and posture are important generally. So, it is perhaps worth doing these exercises regardless of whether you have Covid-19 or not.

Heal the world

Humanity has behaved like a parasite on planet Earth, sucking out all of the goodness from the forests, the oceans, the land and laying its waste at the feet of Mother Nature. It fills the rivers with poison and the seas with plastic. It has spent almost two centuries creating the kind of cloying atmosphere that leads to boundless desertification, washes islands away, and promotes the release of yet more cloying gases from the frozen extremes. Humanity is the parasite that cages and curates all the others species with which it shares the planet, draining the life from them, and reducing its diversity through anthropocenic mass extinction.

In the light of such ongoing devastation perhaps, some outside agency thought, what the planet needed was a bit of pest control…

How about a fast-spreading illness that forces the parasite to curtail the parasite’s airborne activities? One that stops it spreading its pollution along arterial conduits with its countless gas guzzlers? One that shuts down its commercial and industrial activities that the planet might begin its recovery? One that reduces the resources available to the parasite and forces it to retreat into its domestic shells? One that even stops it allowing its bird-killing secondary pests into the outside world?

It seems that already atmospheric aberrations are already declining, the rivers are clarifying, the stars are coming out in numbers not seen for decades, the birds are singing, and wildlife is gently extending its range into the parasite’s silent cities.

Is the world healing?

Might the parasite evolve to adapt to its ecosystem in the wake of this anti-pestilence? To live in greater harmony with the rich diversity of all life on Earth? Might it settle into a more subtle existence, one that does not wreak havoc and devastation but one that speaks harmony and remediation?

Noc migging- Night flight call recording

I mentioned noc migging at the end of last year as something I planned to do in the spring of 2020. “Nocmig” or Night flight call (NFC) recording as the Americans know it, is basically making an audio (or indeed video) recording of the sky above you at night with the aim of plucking from the audio the calls of birds flying overhead as they migrate.

We’re coming into the main migratory season in the UK with a few of our summer visitors already here, many more heading this way and crossing the Iberian Peninsula and other parts of the continent lying between their winter holiday homes further south and The British Isles. Of course, the wintering birds are also returning to their summer roosts and mating grounds further north, in the far reaches of Scotland, Scandinavia, Siberia, and The Arctic.

So…I just need to waterproof a microphone to stick out of the window and setup some audio recording software to run overnight. I’ll use my music software as it has lots of options for cleaning up the sound. With a “tape” in hand it can either be scrolled manually looking for bursts of sound in the waveform and these sampled out to be analysed spectrally or it fed into a second bit of software such as a spectrogram to filter out barking dogs and vehicles and other non-avian noises. Cornell University then has an app – Raven – that can take the cropped analysis and identify the birds from their calls in your recording.

I’ll keep you posted…

You can’t scratch my back

Even when the only “online” we had was old-fashioned landline phones, long before, Skype and Facetime, Whatsapp and Zoom, HouseParty, and th rest, people often ended a call with a “let’s meet up soon”. We need that face-to-face, the handshakes, the hugs, the pat on the back, the ruffling of hair, the you (literally) scratch my back…

While we’re all social distancing in our splendid isolation, staying home to stay well, those online chat apps and what have you have come to the fore. Most of us have now partaken of at least one such “event”, a virtual pub crawl, a band rehearsal, a charity quiz…we can see each other’s faces, we can chat, we can message, we can share digital commodities. And, seriously, for now, while the waves of pandemic and panic endure, it really is all we have, thank goodness for the advent of what we used to called Web 2.0 when most people had only just go on to Web 1…

There’s something missing though…it’s that face-to-face, it’s the body language, the subtle look, the full-on laughter, the chance to connect in real-time in real-space without buffering, without dropouts and glitches, without sound delays and the out-of-sync video. But, there’s no way around it until the tech people come up with zero-latency electronics and even then you still have the problem of not sharing the same physical space.

So…is there something that can make it more real, something that triggers the dopamine receptors and boosts oxytocin, something to chemically or electronically substitute for the feelz? If there is, the government needs to roll out that app or send us a prescription fast…