Showing posts with label Yellowhammer. Show all posts
Showing posts with label Yellowhammer. Show all posts

Thursday, 16 July 2009

Flying creatures of Bradgate Park


Amongst the bracken of yesterdays walk, which was around Bradgate Country Park, you could hear birds calling. This constant twittering would be shattered every now and then by the racket caused by a wood pigeon taking off or a crow coming noisily to investigate who knows what, but soon after the calling would begin again. It was most noticeable when I was up to my eyeballs in bracken. Looking around I could see several species of birds acting cooperatively as they kept their eyes on me and calling warning calls to the other birds. The bird above is a Yellowhammer (Emberiza citrinella).

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.

Monday, 29 June 2009

Out in the hedgerows

During late July a lot of the fruit flowers have been pollinated and nothing is left but for the fruit to grow. Blackberry, seen here, has an unusual flower. Whereas some plants have one stigma in the centre, the blackberry has many. Each of these stigmas will bring the sperm cells from the pollen to a different seed. Each nodule on a blackberry is fertilised separately in this way. Next time you eat a blackberry think about the fact that you are eating the genetic information from about fifty plants.

Its a good time of year for birds as well. Many, like this Yellowhammer or Emberiza citrinella above, have been busy bringing up a second brood. Here we can see a male bird with a caterpillar in its beak. For a few minutes it sat on this metal gate in Nottinghamshire and didn't once try to swallow the grub. I remember thinking at the time that he must have many mouths to feed somewhere. Tomorrow we will take a look at bumblebees.