Tuesday, 25 August 2009
on spotting the fifth dragonfly species of the season!
Thursday, 16 July 2009
Flying creatures of Bradgate Park
Joining the avian warning system was this Skylark (Alauda arvensis) above and a Male Reed Bunting (Emberiza schoeniclus). For several minutes I watched as they sang their warning, before moving to a different perch. Several times they would fly overhead to get a closer look at me and assess the danger.
Each of the several ponds had a dragonfly. One pond had two, but they fought with each other the whole time I was there. Obviously they are very territorial. I noticed that the upland environment seemed to favour one particular species. Basically all the ponds were colonised by the same species which is quite different to down in the Soar valley where different species live side by side. The one above is a Broad Bodied Chaser (Libellula depressa). As different to the Hawkers this dragonfly has a brightly coloured thick abdomen. Hence the name.
Away from the ponds I found this beautiful Common Darter (Sympetrum striolatum). This dragonfly is quite happy living without ponds and is commonly found in hedgerows etc. Being smaller than the Chaser it makes sense to find somewhere else to live rather than fight a creature twice your size for a space on a lily pad.
Friday, 10 July 2009
In the dragon's den
No matter how close I got with the bigascope I couldn't resolve those huge compound eyes. The dragonfly has the most advanced compound eye in the animal kingdom. The dragonfly itself is the work of 200 million years of perfecting redesign that has given it the best wings, eyes, legs possible. The only way to get better was with a different design altogether. Like the eyes we have.