Adult Great Black-backed Gull (Larus marinus) vocalizing. Bird is producing the "Long Call", consisting of several repeated notes produced while bird lowers and then elevates head. Tompkins County, New York. December.
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Adult Great Black-backed Gull (Larus marinus) vocalizing. Bird is producing the "Long Call", consisting of several repeated notes produced while bird lowers and then elevates head. Tompkins County, New York. December.