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APRIL 2009 BIRD OF THE MONTH |
A Montana Sandpiper
By
Jeannie Marcure
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Hear the Spotted Sandpiper sing!
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Now that spring is officially here, it seems appropriate
to write about one of my favorite spring arrivals—
the Spotted Sandpiper. Before I became serious
about birding, the word sandpiper evoked an image
of sunny tropical beaches filled with small unidentifiable
birds playing happily in the surf. However, as I
became more knowledgeable, I learned that one of
these fascinating little birds actually spends the summer
and raises young in the Flathead. Also, as the
most widespread breeding sandpiper in North America,
the Spotted Sandpiper is easy to find and also
easy to identify. No wonder that I’m so fond of
“Spotty!”
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Juvenile Spotted Sandpiper |
Spotty is a medium-sized shorebird (7-8
inches) with a moderately long neck and legs. In
breeding plumage, the under parts are white with distinct
brown spots. The habit of constantly bobbing its
tail up and down as it walks makes it easy to see in its
shoreline habitat. Spotted Sandpipers are most easily
confused with Solitary Sandpipers, but the breeding
plumage of the Solitary lacks the spotted chest. The
Solitary is also slightly larger and has a more upright
posture. Here in the Flathead, separation of these 2
can be aided by the time of year, as Solitary only
passes through as it travels to its nesting area in the
far north. A Solitary would typically be found here only
during migration in May and early August. Because
juvenile Spotted Sandpipers lack the distinctive brown
spots that typify the adults, the most difficult time for
identification probably comes in early August when
both species are present in the Flathead. At that time
you should check carefully for the tail bobbing and
also for the more crouched posture of the Spotty.
Flight patterns may also aid in identification as Spotted
Sandpipers fly close to the water in a straight line
with stiff, shallow wing beats, while the Solitary often
zigzags on takeoff.
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Spotted Sandpiper
Breeding Plumage |
Arriving in the Flathead as the ice leaves,
Spotty prefers a habitat that borders water, with open
vegetation and a few elevated roosting sites such as
fallen trees or stumps. Interestingly, Spotted Sandpipers,
along with a few other kinds of shorebirds, have
reversed sex roles. This means that the female is larger
than the male and typically arrives at the breeding
ground first, staking out her territory and attempting to
attract a male. She is also more aggressive in the
courtship and may mate with several males, while the
male takes the primary parental role of incubating the
eggs and caring for the chicks. Because the female
can store sperm for up to a month, the eggs she lays
for one male may have been fathered by a different
male in a previous mating.
The nest is built on the ground in a grasslined
depression concealed by tall grass. The four
eggs are buff with brown spots and hatch after 21
days of incubation. The precocial chicks literally “hit
the ground running,” and are out of the nest foraging
within hours of hatching. They will occasionally spend
their first night in the nest with an adult and in the
case of inclement weather, may remain in the nest,
brooded by one of the adults until conditions improve.
The characteristic tail bobbing begins as soon as the
chicks being to walk; first flight occurs 13 to 21 days
after the hatch. Spotted Sandpipers are usually seen
only in small family groups of 2 to 5 and not in the
large flocks that typify some of the other sandpipers.
As the ice leaves your favorite lakes and rivers
this spring, I hope you’ll get a chance to see the
Spotted Sandpipers. They are most easily found if you
canoe or kayak quietly along the shoreline of any of
our smaller lakes. Listen for their distinctive “WEET”
and watch for a small bird flying near the water or teetering
on a shoreline log as they search for a meal of
insects or larvae. Last summer I saw Spotted Sandpipers
on Foys Lake, Blanchard Lake and also along
the Stillwater and Flathead Rivers.
Given the economic challenges of the past
year, isn’t it nice to know that you can add a sandpiper
to your life birding list without taking an expensive trip
to some faraway beach? Enjoy our Montana spring—it
won’t last long and remember that Spotted Sandpipers
are only here from late April until mid July! Their
stay is brief—just like our beautiful summers!
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