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WatchList Species Account for American Golden-Plover (Pluvialis
dominica)
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| Photo: © Dale
& Marian Zimmerman |
The American Golden-Plover breeds in northern
and central Alaska eastward across Arctic Canada to Baffin
Island and the northwest shore of Hudson Bay and winters from
Central America to southern South America, primarily in the
Rio de la Plata grasslands consisting of pampas in east-central
Argentina and campos in Uruguay and southern Brazil. It may
also breed in eastern Russia. Formerly it was regarded as
conspecific with the very similar Pacific Golden-Plover (see
separate account) but studies have determined that the two
do not hybridize in the limited area in western Alaska where
they both occur during breeding and in 1993 they were described
as separate species.
During breeding it nests in sparse, low
vegetation on higher, well-drained rocky slopes; avian predators
such as jaegers and gulls take some eggs and young. During
migration it frequents native prairie, pastures, golf courses,
airports, turf farms, mudflats, shorelines and beaches before
making a nonstop flight of some 5,000 km over the Atlantic.
It feeds on invertebrates, primarily terrestrial, and forages
selectively for larger prey. It is highly territorial and
has a territory size estimated at 25 ha on the North Slope
of Alaska. It is also territorial on its grassland and inland
wetland wintering areas in Argentina.
Once hunted heavily, its population rebounded
after most hunting ended in the early 20th Century. Hunting
still occurs in Guyana, French Guiana, Suriname and Barbados
but apparently not to any extent elsewhere. Habitat loss on
the wintering grounds to agricultural fields and grazing means
the bird is unlikely to reach the numbers it had before this
heavy exploitation, but most of the breeding range of the
bird is intact and not much impacted by humans. Though there
are no precise population estimates, the bird numbers at least
in the tens of thousands.
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