Sunday, 8 April 2018

Thanks to migratory bird act, laughing gulls making a comeback – no joke



By Michael Burke on March 30, 2018

We had traveled to Cambridge, MD, to look for late winter waterfowl on the Choptank River, but instead I found myself looking at one of the true harbingers of spring.

No, it wasn’t a robin — many of which overwinter right here in Maryland. My gaze was fixed on a laughing gull (Leucophaeus atricilla), the raucous seagull that is an integral part of any summer beach scene on the East Coast, and a real springtime migrant.

We were in the parking lot of the Waterfront Park, and the gulls outnumbered the cars on that blustery March day last year. They were mostly ring-billed gulls, but four laughing gulls were there to announce the imminent arrival of spring.

Laughing gulls start to arrive in Maryland in mid-March annually. The biggest influx occurs in mid-April.

They arrive in the Chesapeake watershed already wearing their distinctive all-black heads.

Laughing gulls mate in late spring, incubate their eggs for three weeks and tend to their young for another month until they fledge. 

By mid– to late-July, a new generation is on its way, and the parents begin to molt into their “winter” plumage, and the black hood gives way to a white head with smudged patches of gray. It takes the brown juveniles three years to reach their adult colors. 


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