Author: J.K. Ullrich, Bird TLC volunteer
The first six gifts in the carol “The Twelve Days of Christmas” are birds (seven, if you consider that “five golden rings” may have originally referred to goldfinches or the ringed plumage on a pheasant’s neck). To celebrate the holiday season, BirdTLC is reimagining the lyrics with native Alaskan birds. Visit our blog every week from now until the end of December for fun, festive facts about our wildlife.
The “two turtledoves” in the iconic holiday carol probably didn’t have long, spindly legs or six-foot wingspans. But among Alaskan birds, no species better evokes human ideas of romance than the Sandhill Crane. Gangly yet graceful, these birds are famous for their elaborate courtship dances.
Prospective partners bob their heads and bow. Leaping and strutting, they might toss sticks into the air. They run with broad wings extended. Loud rattling calls echo across Alaska’s wetlands. If the display succeeds, the lovebirds will also sing a unison call. Believed to mate for life, cranes stay with their partners year-round.
Ritualized choreography seems to play a role in bonding. Although performances peak during breeding season, it can occur at any time of year. Sandhill crane couples dance together even after they are paired. Once a pair starts a dance, the entire flock may join in! Young birds also dance, even chicks just a few days old, suggesting it may contribute to motor development.
Dance moves aren’t the only measure of a partner’s appeal. A Sandhill Crane’s distinctive red cap is not feathers, but a patch of bare skin that recedes as the bird ages. (The oldest crane on record was nearly 40 years old.) A bigger bald spot indicates the bird has survived multiple migrations, a badge of experience and good health that attracts potential mates.
Crane parents build a ground nest out of plant materials and care for it together. The two eggs take about a month to hatch, and a further two months for the chicks—called colts—to reach independence. Autumn finds the family migrating south together. In a few years, the juveniles reach sexual maturity and begin dancing for their own mates.
These dances can only continue if we preserve the stage. Alaska hosts two distinct groups of sandhill cranes: the larger one breeds on the Yukon-Kuskokwim Delta and in the Interior, wintering in the southwestern United States, while a smaller population breeds in the Cook Inlet region and winters in California. All rely on migratory corridors, but habitat loss along the route could mean curtains for the cranes. Conservation organizations like BirdTLC work to ensure these unlikely “turtledoves” live happily ever after.
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