Saturday, January 7, 2017

Goldcrest


When our kids were little they used to call goldcrests 'squeaky wheels' because their thin, repetitious, high pitched notes sounded like the squeaky wheel of the push-chair.

It will be about three months before goldcrests start singing and at this time of year, because they are quiet most of the time, and because they are so small, these little birds are easily overlooked.

They spend most of their time in conifers but this one was flitting around in a gorse bush, probably on the lookout for spiders - which must be hard to find in January. Sometimes these can be very approachable - this individual came within a few feet of me.




It's remarkable how closely the hue of the goldcrest's yellow crest matches the colour of gorse flowers.













Monday, December 26, 2016

Hummingbirds

I found this copy of H.G.Adams Humming Birds Described and Illustrated in an antiquarian bookshop many years ago. One of its hand-coloured steel engravings is missing but those that remain are exquisite. It was first published in 1856.

Henry Gardiner Adams (1811-1881) wrote several natural history books but not much seems to be known about him, other than that he was a chemist who eventually went bankrupt. 

The text describes the species illustrated but the best part of the book is a chapter written by C.W.Webber, who caught and bred hummingbirds in an effort to study their behaviour and diet. 

At that time there was a great deal of debate about whether these little birds could survive on nectar alone. Webber and his sister fed spiders to ruby-throated hummingbirds as well as nectar, demonstrating that their diet could be more varied than had been supposed.

You can download the whole book in a variety of formats by clicking here



















Azure-crowned and White-eared



































Double-crested and Violet-eared 



































Tufted-necked and Delalande's 




































Blue-throated and Amethyste 



































Dupont's and Racket-tailed













Pigmy and Gigantic



































Ruff-necked and Mango

Monday, December 19, 2016

A Moroccan harvestman in Durham in Winter







































This extraordinary harvestman, with forked pedipalps, is Dicranopalpus ramosus. It is currently living behind the door of our garage, still alive and apparently still active in the depths of winter.



















This species is native to Morocco and was first noted in Britain , in Bournemouth on the south coast, in 1957. Since then it has reached the Scottish border and is still heading north.







































This is only the second time I've seen it here in Durham. The first was in summer, when I found one in my greenhouse.

It's a real surprise to find this one in mid-winter, alive but missing a couple of legs.