Chignik Lake, Alaska Peninsula, August 20, 2018
There are two species of yellowlegs – Greater, the larger of the two species and featuring a proportionately longer bill, and Lesser, the smaller of the two with a proportionately shorter bill. Until you’ve looked at quite a few of these birds, they are difficult to tell apart unless they’re near each other. We never encountered Lessers at The Lake, but from spring through early fall Greaters were common.
Yellowlegs stalk shoreside margins searching for any small fish. A quick stab is usually all it takes before they come up with a stickleback or salmon parr siscorred chopstick style between their bills. Close examination of photographs hints at small serrations in the roof of the upper bill, helpful in repositioning their catch for a head first swallow. Their piercing calls, delivered in sequences of three and four quick, sharp cries, can sound almost like a car alarm. Unlike most shorebirds, yellowlegs often perch at the very tops of trees, a behavior they share with Wandering Tattlers.
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