April 19th

A cold wind blew throughout the day which made mist netting unproductive in exposed areas. The unpleasant weather did not deter our first warbler visitor however as a Pine Warbler was found foraging on the lawn at the side of the mansion.

More Slate-Coloured Juncos and kinglets moved in during the night as well, with the former being especially well represented throughout the property.

Three Bald Eagles were sighted late morning – 2 adults and an immature. The latter seemed to raise the ire of a local Red-Tailed Hawk and was chased until out of sight, being harried mercilessly.

Another sign of spring was the observation of Ruthven’s first Spring Azure in the valley behind the banding lab. Trout Lilies have flowered as well.

Banded: 36
American Goldfinch 11
Golden-Crowned Kinglet 3
Field Sparrow 1
Slate-Coloured Junco 9
Chipping Sparrow 2
American Tree Sparrow 1
Swamp Sparrow 1
Song Sparrow 1
Hermit Thrush 1
Brown-Headed Cowbird 2
Red-Winged Blackbird 2
American Robin 1
Mourning Dove 1

Retrapped: 21
American Goldfinch 4
Black-Capped Chickadee 1
Slate-Coloured Junco 2
Song Sparrow 8
Eastern Tufted Titmouse 1
Brown-Headed Cowbird 3
Eastern Bluebird 1
Downy Woodpecker 1

44 species observed on the day.


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