It’s that time of year again! The annual battle between Man and Gull, as Herring gulls nest on roofs and chimneys around the town! Let me start by saying that I love Herring gulls – it would be a dull world without them – but I totally understand why not everybody wants them nesting on…
Some of the most most complex and diverse galls found on oak trees are caused by tiny gall wasps (Hymenoptera, Cynipidae, Cynipini), with each species producing a characteristically shaped gall. I came across some nice little, currant-like galls this Spring, which were new to me, although very common it seems (see below). These currant galls,…
I was delighted to come across this little (c. 10-15mm) stag beetle, the horned or rhinoceros stag beetle, Sinodendron cylindricum (L.), emerging from an old, dry tree stump, and flying off to start a new colony elsewhere. They have developed as larvae, inside the decaying wood, for up to three years, I think. Eventually, they pupate and…
In dragonflies, males are generally classed as fliers or perchers. Fliers spend most of their time on the wing – and have longer wings – whereas perchers spend most of the time sitting on a perch, from which they make short flights, defending territories and seeking females. The emperor dragonfly, Anax imperator Leach (Aeshnidae) is…
There are four species of these beautiful Calopteryx damselflies belonging to the family Calopterygidae, in Europe, and two occur in Britain: the Beautiful and the Banded demoiselle (below). There are also a number of subspecies of each type. In this blog I am featuring a Spanish subspecies of Calopteryx virgo, called meridionalis, and Calopteryx splendens from Bedfordshire in…
We are lucky to have a small population of Ruddy Turnstones, Arenaria interpres, in Scarborough. They spend most of the year here, except for the summer when they fly up to the Arctic to breed. Before they leave in May, they have usually moulted into their gorgeous breeding plumage (below). Their plumage gradually changes over…
So much has been written about the ‘insect apocalypse’; so many books, papers and articles are appearing all the time, that it can be difficult to make sense of it all. Unfortunately, and although there are a lot of ‘ifs’ and ‘buts’ and caveats, things do look rather alarming, particularly when we take a global…
When I came across this melee of seabirds, just off the East Pier in Scarborough, I was a bit confused at first about what was going on! There were large numbers of juvenile Herring gulls taking off and landing in the water. What were they doing? After a while, I realised that there were a…
Insect cuticles are protected from drying out and abrasion by a thin layer of waxes and cuticular hydrocarbons (CHCs). These epicuticular waxes are produced by secretory cells which lie beneath the epidermis (see below) The importance of this epicuticular layer in preventing the insect from drying out has been known for a long time, but…
In this blog I consider why there are different female colour forms (or morphs) in some damselflies, such as the Common Bluet, and briefly discuss some of the theories which attempt to explain their existence. In Enallagma species (Coenagrionidae) – called Bluets – males usually start searching for mates before females have appeared. Some males…
Ailsa Craig rises up out of the Firth of Clyde, rounded and rugged, a gigantic lump of rock hard granite. I had the pleasure of sailing past this small island, 1 .2 km in diameter and home to over 35,000 pairs of northern gannets (Morus bassanus) last month, on a short, three-day cruise out of Liverpool. Ailsa…
Older readers may remember the hilarious sketch by Monty Python where they play four Yorkshiremen trying to outdo each other in terms of how poor and deprived they were whilst growing up! If not, here are a couple of versions of the sketches: For some reason, I was reminded of this sketch whilst photographing this…
Originally posted on Ray Cannon's travel blog:
Mallard (Anas platyrhynchos) 6 June 2021 Beds, UK. Photo by Raymond JC Cannon Many types of dabbling ducks have iridescent wing patches called specula (singular: speculum). These flashes are usually blue or green, although the colour can vary somewhat according to the angle and the lighting conditions.…
There’s a lot going on inside buttercups if you look closely. Well maybe not all buttercups! But if you keep an eye open, all sorts of things turn up, as I have blogged about before: Buttercup bedfellows. Today I came across a new bedfellow to add to the list: Orange spot percier (Pammene aurana). This…
Mark Cocker’s Country diary piece in the Guardian this week, 1 June 2021 (‘the most seductive shade of green‘) got me thinking about leaves, trees and colours. As Mark reminded us, leaves look green because chlorophyll molecules absorb the red end of the visible light spectrum in photosynthesis, and the unused green light is reflected. Counterintuitively perhaps, they are green…
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