I was home from work a little
earlier than normal this evening so I thought I would try popping the nets up
for an hour. I only caught two birds, both female greenfinches, another new
species for the garden. I have to admit to finding the ageing of them a little
tricky. I think the first was an adult bird due to its tail being quite broad
and the primary feathers being in pretty good nick; however, the shape of the 5th
tail feather looked more like the juvenile shape in Svensson. This bird had a
brood patch starting.
Adult wing? |
Adult tertials? |
Adult tail? |
Brood patch starting |
First year tail with faint fault bar (doesn't show up very well on pic) |
First year tertials? |
First year wing? |
If anyone can confirm my ages from the photos, or has an
alternative theory, please leave me a comment.
Ruth
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