With some submissions yet to come in the group has just passed 15,000 new birds ringed which is almost 4000 more that the average for the last five years. With ringing effort being roughly the same this suggests excellent productivity for both residents and migrants. The table below compares the 2014 catch with the five year average for species ringed regularly in good numbers.
Species 5 Year Average 2014 catch
Chiffchaff 185 462
Willow Warbler 434 585
Whitethroat 116 257
Lesser Whitethroat 46 71
Blackcap 109 300
Reed Warbler 1010 1300
Sedge Warbler 416 410
Goldcrest 129 211
Robin 132 326
Grey Wagtail 49 162
Wren 134 258
Reed Bunting 196 364
Of these 13 species only Sedge Warbler has not shown any increase. The fact that both migrants and residents have increased suggests excellent productivity and survival no doubt due to the good warm weather especially later in the breeding season. In the case of residents last winters mild weather also helped.
John
3 comments:
I would add Dunnock to this theme
I would add Dunnock to this theme
I would add Dunnock to this theme
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