.לגר-תמורק תיפוח (215






Semipalmated Sandpiper
Semipalmated Sandpiper
Semipalmated Sandpiper




Calidris pusilla
Calidris pusilla
Calidris pusilla


לארשי

.רתוי ההכ יזכרמה וקלח ,רפרפא םוח ןוילעה ופוג קלח .ונימ ינב בורמ ריהב יאמפוח :לגר-תמורק תיפוח.
.המש ןאכמו םורק י"ע הקלחב הסוכמ ןהובה .םיהכ םיספב םיספסופמ ףוגה ידיצו הזחה
.לפשו תואג לש תפוחסב םירישע םיילוח םי יפוח ךרואל הדידנה תפוקתב .םימ תברקב ,שרבא יחיש םע תוחל תורדנוט ,ןוניקה תפוקתב הלודיג תיב
.רתויב הרידנ תיארקא חרוא תרבוע ץראב
Subspecies and Distribution.
Calidris pusilla N Canada and N and W Alaska. Winters on Pacific coast from Mexico to S Peru, and on Atlantic coast from Yucat'an and West Indies to C Argentina.

Descriptive notes.

14 cm, 20-40 g, wingspan 35 cm. Plumage duller than in most congeners. Brownish grey upperparts with dark centre to scapulars. Breast and flanks with dark streaks. Toes partly webbed, and legs shorter.
Female averages larger. Non-breeding adult plain grey brown above. Dark crown and eyestripe. Face, breast and flanks white. Faint lateral breast patches.

Habitat.

High and low Arctic and subarctic wet sedge or heath tundra, often near pools, rivers and lakes. River deltas in dry shrubby areas, and sandy areas along rivers.
Non-breeding habitat mainly coastal, on sandy beaches and intertidal mudflats, also in shallow lagoons with dead mangroves.

Food and Feeding

During migration, small aquatic and marine invertebrates, snails, molluscs and polychaetes, some terrestrial invertebrates such as insects and spiders.
Pecks and probes. Highly gregarious, occasionally when food scarce and patchy, defends feeding territory.

Breeding.

Jun-Jul. Monogamous. Territorial. Low degree of natal philopatry.
Nest is mere depression filled with plant matter, often on top of small island or hill, under willow bush or small birch tree, or in tussock. 4 3ggs, single brood, incubation 21 days, by both sexes. Female usually leaves brood up to 10 days after hatching. Age first breeding 1 year.

Movements.

Migratory. non-stop flights of up to 4000 km. Flocks of up to 350.000 birds may gather at key stopover sites.
Few move to S Florida most to West Indies and N South America, mainly Surinam and French Guiana.
Alaskan birds move across Great Plains, sometimes farther E, especially on way S.
E Canadian population crosses W Atlantic to West Indies, with return migration up Atlantic coast.

Status and Conservation.

Not globally ghreatened. total population estimated at 3.500.000 birds.

Israel.

In Israel subspecies Calidris pusilla. Straggler. One recorded at Eilat (16.5.1989).

Calidris pusilla
(in Israel)




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