Field
Guide IDs: BREEDING:
Mossy or wet grassy
tundra, occ in drier habitats with scattered
shrubs. 1 brood. DISPLAYS:
Advertising flight:
male flies at 35'-100', alternating brief glides
and bouts of rapid fluttering. See:
Shorebird
Communication. NEST:
In grass, moss, or
sedge hummock in sphagnum bog or dry upland
habitat. Lined with dry leaves, bits of dry grass.
Both sexes present during scrape-making. EGGS:
Olive buff/pinkish,
marked with dark brown, wreathed. 1.1" (29
mm). DIET:
On coast, also
crustaceans, worms, mollusks. CONSERVATION:
Winters s to c and
e Peru. NOTES:
Males evenly spaced
in marsh-bog habitat. Territory usu for nest site
only, occ also for foraging and brood-rearing; usu
feed in undefended, communal area distant from
nesting ground. Male assumes increasing role in
incubation and is largely responsible for care of
young. After nesting, adults and chicks move to
undefended, communal feeding grounds. Flocks with
Semipalmated Plovers, other "peeps" (small Calidris
sandpipers). Extremely rapid wing beats and zigzag
flight. ESSAYS: Shorebird
Migration and Conservation;
Sandpipers,
Social Systems, and
Territoriality;
Shorebird
Feeding;
Spacing
of Wintering Shorebirds;
Who
Incubates?;
Parental
Care. REFERENCES:
Cramp and Simmons,
1983; Johnsgard, 1981; Miller, 1983.
Calidris minutilla Vieillot
NG-174; G-132; PE-134; PW-pl 32; AE-pl 223; AW-pl
195; AM(l)-382
Location
Type
Mating System
Parental Care
2ndary Diet..
Strategy
I:
19-23 DAYS
PRECOCIAL
2
MONOG
M-F
..........INVERTS
SEEDS