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Laughing gull Ring-billed gull Least tern. Laridae is a family of medium to large seabirds and includes gulls, terns, kittiwakes, and skimmers. They are typically gray or white, often with black markings on the head or wings. They have stout, longish bills and webbed feet. Black-legged kittiwake, Rissa tridactyla (A) Sabine's gull, Xema sabini (A)
Which hummingbirds have you seen in Oklahoma so far this spring? Plus, what to know about attracting hummingbirds to your garden.
The western population, the California least tern, was listed as an endangered species in 1972 with a population of about 600 pairs.With aggressive management, mainly by the exclusion of humans via fencing, the Californian population has rebounded in recent years to about 4500 pairs, a marked increase from 582 pairs in 1974 when census work began, though it is still listed as an endangered ...
Colony nesting may be an evolutionary response to a shortage of safe nesting sites and abundance or unpredictable food sources which are far away from the nest sites. [4] Colony-nesting birds often show synchrony in their breeding, meaning that chicks all hatch at once, with the implication that any predator coming along at that time would find ...
Forster's tern is usually restricted to North America. [6] It nests in marshes during the summer, on both the Atlantic and Pacific coast, and also in the Prairies and on the Great Lakes in Canada and the US. [5] [6] [9] Due to the instability of its nesting habitat, Forster's tern exhibits a high annual turnover rate. [9]
The plumage of the Inca tern is the most atypical of the group.. Terns range in size from the least tern, at 23 cm (9.1 in) in length and weighing 30–45 g (1.1–1.6 oz), [1] [2] to the Caspian tern at 48–56 cm (19–22 in), 500–700 g (18–25 oz).
The source for birds in the U.S. territories is the Avibase website: Bird checklists of the world (American Samoa), [6] Bird checklists of the world (Guam), [3] Bird checklists of the world (Northern Mariana Islands), [5] Bird checklists of the world (Puerto Rico), [4] Bird checklists of the world (United States Virgin Islands), [9] and Bird ...
Oklahoma City tests its tornado sirens every Saturday at 12 p.m., unless there's already inclement weather to be expected. The noise can be quite jarring, especially if there's clear skies and sun.