Life histories of North American shore birds, Part 1 (of 2) — John Shaqi
Life histories of North American shore birds, Part 1 (of 2)Bent, Arthur Cleveland
Science
Life histories of North American shore birds, Part 1 (of 2)
Bent, Arthur Cleveland
Birds -- Behavior; Shore birds -- North America
Kelp flies seemed to satisfy its sporting instincts and hunger, and
the bird stalked them slowly and pointedly one by one. With bill
and neck outstretched and lowered in line with a fly on the sand, a
slow advance was made until with a pounce the hunt closed. If the
fly escaped, the phalarope sometimes ran after it, bill out.
Another pose interested me. On finding a kelp mass decaying and
drawing flies, the phalarope approached closely and so low that his
breast touched the ground, but the rear of the bird was high up. At
times he would remain with breast down and pick at the flies much
as a dusting fowl picks up a stray grain. Mr. L. E. Wyman reported
similar "breast to ground" actions of two phalaropes he saw feeding
by a kelp mass on the beach.
Alexander Wetmore (1925), in his report on the food of the red
phalarope, analyzed the contents of 36 stomachs, mainly from the
Pribilof Islands, with some from New York and Maine; they were collected
from May to November, but mainly in August. Crustaceans made up 33.5 per
cent of the food; beetles amounted to 27.3 per cent; flies formed 22.7
per cent; and 6.8 per cent consisted of tiny fishes, mostly sculpins.
The food of this species therefore shows it to be harmless or neutral.
_Behavior._--Phalaropes are active, lively birds in all their movements
and they seem to be constantly on the move. They are all rapid fliers
and this species is decidedly the swiftest on the wing of all three. As
the restless flocks move about over the water, their aerial evolutions
are well worth watching. Lucien M. Turner, in his Labrador notes, writes
that he has seen them "ascend to a great height in increasing circles,
darting in and out among each other and making a peculiar twitter as
they ascend. When some suitable locality is discerned these birds
descend almost perpendicularly and drop on the water as softly as a
feather." They are so much like sandpipers in appearance and in manner
of flight that one is always surprised to see them alight on the water.
Perhaps even more surprising than their peculiar marital relations are
their aquatic habits. Their semipalmated and lobed toes are well adapted
for swimming and the thick, compact plumage of their under parts
protects them and buoys them up on the water. They float as lightly as
corks, or as freshly fallen autumn leaves on a woodland pool, swimming
swiftly and whirling rapidly, undisturbed by rushing currents or by
foaming breakers. William Brewster (1925) has well described the
behavior of a red phalarope on an inland stream at Umbagog Lake, Me.; he
writes:
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