Use of Blister Beetle in Bill-Sweeping by White-Breasted Nuthatch
1971; Oxford University Press; Volume: 88; Issue: 1 Linguagem: Inglês
10.2307/4083981
ISSN1938-4254
Autores Tópico(s)Entomological Studies and Ecology
ResumoOn 19 October 1969 Floyd and Pearl Lawhon discovered an adult Arctic Loon in summer plumage at Browning Lake, Buchanan County, Missouri.After two unsuccessful attempts the senior author collected the bird on 23 October 1969.It was a male (testes 10 X 3.5 mm, moderately fat) that could fly (seen once flying the 1-mile length of Browning Lake) and appeared healthy in all respects.That the bird was still in summer plumage seems unusual, but Palmer (op.cit., 41) gives the definitive alternate plumage as lasting until October.Only the head and neck showed any suggestion of beginning molt.The bird weighed 4.93 pounds and its stomach contained unidentified fish and pebbles.The throat patch had both a purple and green sheen and the measurements (flattened wing 313.5 mm, tarsus 77.5 mm, bill from feathers 52.5 mm) were inconclusive for determination of the subspecies; pacifica would be the expected race (Palmer, op.cit.).As already suggested by Easterla (op.cit.), the Arctic Loon, breeding over most of extreme northern North America, may migrate more commonly through the interior than records indicate, especially in the autumn when immatures and winter-plumage adults could be easily overlooked and mistaken for the Common Loon( Gayla iraruer).The specimen was preserved as a study skin (CLJ 149) and is at
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