Friday, 11 January 2019

December 2018 - Wilstone Reservoir



So to the end of the 2018. December could not match November for numbers and variety but we still had a reasonable amount. There were six new Chiffchaffs, one of which was retrapped, 42 Redwings and a single Fieldfare and a selection of the usual suspects (see table below).

Intriguingly, we did catch a Female Cetti's Warbler that seems to be choosing Wilstone as an over-wintering site. First ringed as an adult during the winter of 2013, she has been retrapped on at least one occasion every winter since. There has not been a territorial male at Wilstone for the intervening years so I think it unlikely that the female has been living in the reed bed all year round and just venturing into the study area in the winter.


New
Retrap
Total
Blackbird
2
2
4
Blue Tit
2
2
4
Bullfinch

1
1
Cettis Warbler

3
3
Chaffinch
2

2
Chiffchaff
6
1
7
Dunnock
2
1
3
Fieldfare
1

1
Goldcrest
3
3
6
Goldfinch
1

1
Great Tit
3
1
4
Kingfisher
1

1
Long Tailed Tit
7
10
17
Redwing
42

42
Reed Bunting
2

2
Robin
1
2
3
Siskin
2

2
Song  Thrush
1

1
Treecreeper

1
1
Wren
3
4
7




Total
81
31
112

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