I've just managed to finish checking my 12 Tawny Owl boxes and for the first time in years I didn't have a single one occupied by owls. 3 had Jackdaws, 4 had Stock Doves, 1 had squirrels and 4 were empty. One Stock Dove pair already had two FS chicks which I ringed. I hope the Barn Owl season is better, though at the moment I'm not sure how optimistic I'm feeling...
Pete
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| Jackdaw eggs |
I caught an interesting Greenfinch this morning at Bestwood. Along with the other ageing criteria to indicate it was a bird hatched last year, it had kindly replaced T5 on one side only, nicely demonstrating the difference in wear and shape. The new adult type feather with a broadly rounded tip of outer web comparing nicely with the tapering off tip of the outer web on the juvenile type feather.
Also of interest was something you don't often get in a mist net - an adult Jackdaw.
Mick P
Laura, Duncan, Gary, Kev and I made the first visit of the year to Skylarks to see which and how many migratory species had arrived back. Although the overall catch was low, we were pleasantly surprised with the variety and had some excellent subsequent encounters.
Three of the warblers were retraps from previous years - amazingly both the Garden Warbler and Willow Warbler were ringed on 28 May 2020 which was the first outing after covid restrictions were lifted. One Chiffchaff was ringed in 2024.
We caught a total of 26 birds: Long-tailed Tit 4, Blackcap 3, Chiffchaff 3, Robin 3, Whitethroat 2, Sedge Warbler 2, Willow Warbler 2, Blue Tit 2, Wren 1, Garden Warbler 1, Reed Bunting 1, Dunnock 1, Song Thrush 1.
Conditions were cool and breezy, overcast to begin with, brightening as the morning went on. Martins were flying overhead.
Holly
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| Whitethroat |
.jpeg)
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| Reed Bunting |
We had another pleasant morning monitoring birds at the Delta end of Attenborough Nature
Reserve. We set nets in a new line along the edge of woodland and into a small clearing.
We were kept quietly busy, the majority being resident species in breeding condition. The two
Song Thrushes, although caught separately and presumably not a pair, were a good addition to
the usual fair. We continued the scrutiny (and debate) over Wren’s wings, and finished on the
high of a Magpie which we deemed to be a young female.
We processed a total of 37 birds: Chiffchaff 1, Treecreeper 3, Wren 4, Long-tailed Tit 2,
Blackcap 5, Great Tit 5, Blue Tit 8, Robin 3, Dunnock 3, Song Thrush 2, Magpie 1.
Holly
It was a frosty start to the day at the Brack feeders, but it warmed up quickly. Although the final total was fairly low (21), it was an interesting day with some nice species. This included a retrap Jay from last week, a new Magpie and a new Collared Dove. Both the Magpie and the Collared Dove were the second of their species ringed on the site since ringing started here in 2008.
The total was (new/retrap): Yellowhammer 6/7, Dunnock 1/1, Great Tit 0/1, Jay 0/1, Magpie 1/0, Collared Dove 1/0, Long-tailed Tit 1/0, Blackbird 1/0
Alex T
This morning we tried another pre-CES visit to the Delta-end of Attenborough Nature Reserve.
We put two lines of nets up through woodland. The weather was cool, sunny, and slightly
breezy.
Unlike the previous week, we couldn’t use tape lures this time as 1st April is the cut-off for
migrants. Fewer Chiffchaffs were caught as a result, though many were heard. However, we did
catch more Blackcaps and presumably they had arrived since our previous visit.
Many species were already showing signs of breeding. The 6 Wrens we were treated to allowed us to compare the ageing criteria in different birds - whether the black lines running along the secondaries and primaries are clean or stepped.
One of the Blue Tits showed a contrast between new and unmoulted primary coverts. Luckily, it
was a retrap so we could confirm whether it was a young bird that had moulted to a greater
extent or an adult bird that had undergone a main moult but missed those few feathers. It was
an adult. Interestingly, when it was ringed as an age 5 it had retained 5 OGCs; a very high
number of unmoulted feathers for a juvenile Blue Tit. So in both instances, it had moulted less
than we would expect.
Total 31 birds: Chiffchaff 1, Goldcrest 1, Wren 6, Treecreeper 1, Long-tailed Tit 2, Blackcap 6,
Great Tit 3, Blue Tit 6, Robin 3, Dunnock 1, Blackbird 1. One of the Blackcaps was a retrap from
2021 that had not been caught since.
Holly
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| Net ride |
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| Adult Blue Tit wing with unmoulted primary coverts |
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| first year Wren with 4 old greater coverts |
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| adult Wren |
We held a second ringing demo at the NTU Brackenhurst campus for Ecology and Wildlife
Conservation students. Despite good ringing conditions early on, it was extremely quiet around
the feeders and we were only taking 1-2 birds out of the net each round, not leaving us much to
demonstrate!
However, the Yellowhammers turned up eventually and it was good to be able to show the
difference in plumage between the sexes and the level of feather wear in the ages.
We caught our eighth Jay for the site, and our first Reed Bunting for 3 years! Although we've
caught c100 Reed Buntings at this site previously, they have been rather absent recently.
The oldest bird was a Great Tit from 2022. We processed a total of 19 birds (new/retrap): Dunnock 0/2, Great Tit 0/4, Yellowhammer 9/2, Reed Bunting 1/0, Jay 1/0.
The weather was cool and still early on, giving way to warm sun and a strong breeze.
Holly
