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
I saw a flock of about 30 long-legged sandpipers alight within 10
steps of me, near the water. They immediately scattered, following
the margin of the retiring and advancing waves, in search of food,
which I could see them procure by probing the wet sand in the
manner of curlews, that is, to the full length of their bill,
holding it for a short time in the sand, as if engaging in sucking
up what they found. In this way they continued feeding on an
extended line of shore of about 30 yards, and it was pleasing to
see the alacrity with which they simultaneously advanced and
retreated, according to the motions of the water. In about
three-quarters of an hour, during all which time I had watched them
with attention, they removed a few yards beyond the highest wash of
the waves, huddled close together, and began to plume and cleanse
themselves. In the stomachs of several individuals I found small
worms, minute shellfish, and vegetable substances, among which were
the hard seeds of plants unknown to me.
N.B. Moore watched a stilt sandpiper feeding in Florida and says in his
notes:
It alighted within 20 feet of me and commenced feeding at once, in
water that nearly covered the tarsi. I was surprised to see it
slowly step along, carrying its bill immersed nearly up to the
base, and sweeping it slowly from side to side, much in the manner
of the roseate spoonbills, which were at the same moment feeding
near by. I noticed no action like that of swallowing at any time,
its motions being continuous--as described--until I shot it to make
sure of the species.
Stuart T. Danforth (1925) says of the food of this species in Porto
Rico:
Seven stomachs (five collected on August 20 and two on September
17) were available for examination. Animal matter composed 70.1 per
cent of the food, and vegetable matter of 29.9 per cent. Bloodworms
(Chironomid larvae) were the largest food item, forming 72.8 per
cent of the animal food. From 150 to 600 bloodworms were found in
all but two of the stomachs. Dytiscid larvae formed 15.5 per cent,
small Planorbis snails 7.1 per cent, and mosquito larvae 0.8 per
cent of the animal matter. The vegetable matter was composed of
seeds. Seeds of _Persicaria_ formed 80 per cent of the vegetable
matter; seeds of _Sesban emerus_ 7 per cent; seeds of Compositae
10.2 per cent, and rubbish 2.8 per cent.
Prof. William Rowan writes to me:
In very dirty weather, particularly if a gale is blowing, stilt
sandpipers have been noted hunting for food high and dry on rough
pasture. This is probably an exceptional performance correlated
with this type of weather, for it has never been observed at other
times.
John T. Nichols says in his notes:
Public-domain text, read in full here on John Shaqi.
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