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~ a celebration of nature

earthstar

Monthly Archives: May 2018

Wild word: phototaxis

02 Wednesday May 2018

Posted by sconzani in insects, nature

≈ 2 Comments

Tags

#WildWords, attracted to light, British insects, Chironomidae species, non-biting midge, phototaxis, repelled by light, wild words

Phototaxis: noun; biology; the bodily movement of a motile organism in response to light, either towards the source of light (positive phototaxis) or away from it (negative phototaxis) (Oxford Dictionary).
I hadn’t realised that some creatures suffer from negative phototaxis but, apparently, cockroaches are repelled by light – I thought they were just scurrying away from the humans who want to kill them. The example of positive phototaxis (i.e. an attraction to a light source) that immediately springs to mind is the moth – I’m sure we’ve all noticed them fluttering around a bright light at night – though there are many other examples. One of these is the insect in my photos: it’s one of the large family of non-biting midges (Chironomidae species). I found perhaps 30 of them on a wall near a street light recently.

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April on the Ely embankment

01 Tuesday May 2018

Posted by sconzani in birds, nature, spring, weather

≈ 4 Comments

Tags

birding, birdwatching, British birds, Cardiff Bay, Ely embankment, Redshank, River Ely, Turnstone

I thought I’d avoid an April Fool’s Day visit to ‘my patch’ in case a long-extinct Dodo should suddenly appear before me (!) so my first wander this month was on 2 April.

180501 turnstones (2)

There were no particular surprises lurking, just the standard avians – two Pied wagtails and one Grey, and two Redshanks, but the treat was a total of 15 Turnstones, many now showing signs of their change to summer plumage. I assume these birds were enjoying a short stopover in Cardiff Bay before continuing their journey north. According to information on the Joint Nature Conservancy Committee website, the Turnstones that winter on the coasts of north-west Europe (including Britain and Ireland) are part of the Western Palearctic population and breed on Canada’s Ellesmere Island, and in north and east Greenland.

180501 turnstones (1)

A good comparison: lower bird changing to breeding plumage, upper bird in winter dress.

The rest of April reads pretty much like that first visit – the occasional one or two Redshanks, the occasional one or two Pied and Grey wagtails, and Turnstone numbers in the low to mid teens. The weather varied considerably, from damp and foggy winter-like gloom to brilliant blue skies with the water so still you could perfect reflections mirrored in it, but the bird numbers and varieties remained fairly static.

180501 weather fog180501 weather fine

So, what I think I will do in subsequent months is expand my monthly catch up to include the whole of Cardiff Bay. I walk right round on a regular basis and, as the habitats are more varied, there is more chance of spotting something a little more interesting. Let’s see what May brings …

180501 turnstone & redshank

180501 turnstones & redshank

Redshank and Turnstones: I still love ’em!

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About me

sconzani

sconzani

I'm a writer and photographer; researcher and blogger; birder and nature lover; countryside rambler and city strider; volunteer and biodiversity recorder.

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