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Contributed by Harvard University, Museum of Comparative Zoology, Ernst Mayr Library.
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Loxia leucoptera
Lake Umbagog, Maine.
1
1889 Maine.
Oct. 19 B. Umbag - These Crossbills have been fairly numerous since
Sept. 1st. They always seem to be flying, however.
These cha-cha-, inks, uiks is a sound that at once attracts
the ear. It is uttered incessantly when a flock is on wing.
This morning, at 7.30, I heard from a flock passing low
over our camp a singularly beautiful breath of song evidently
given by one bird alone. It was very like the song of Regulus
Calendula and to my ear more sweet. The cha-cha cry is
scarcely distinguishable from the flight note of Acanthis Linaria.
These Crossbills are fully as restless as S. minor. They seem
to have regular beats or routes which they travel every day. Thus
the flock noted Oct. 19th regularly passed our camp every
morning at about the same hour, they alighted somewhere
behind it and after feeding ten minutes or more took wing
again. Like the Red Crossbill they are absolutely silent when
feeding. Just before starting to fly one or two birds begin to call
others join in and finally with a general outcry the flock
are off. Their flight is undulating and they fly in a loose
scattered flock. As far as I observed this season they feed
entirely on the seeds of the Spruces. I shot two on the 24th
in a black spruce among cones and on the 26th saw a
flock feeding on white spruce cones in a swamp. They
rarely spent more than three or four minutes in one
tree, usually alighting in a cluster among the cones at
the top, then as if struck by a panic whirled off again.
Occasionally they would alight in the top of a tall
dead pine. I saw one hang head downward and then
climb out under a dead branch using its bill like a
Parrot.