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Glaucous Gull
(redirected from glaucous gulls)

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Glaucous Gull 

polar gull (Lurs hyperboreus), a bird of the gull family, of the order of plovers. Plumage is white; spine and wings, light gray; bill, yellow; and feet, yellowish pink. Length, 64-80 cm; weight 1.4-2.1 kg.

The glaucous gull is distributed all around the pole. It nests on the rocky shores of continents and islands. It lays one clutch of two or three eggs a year. Both parents brood for 27 to 28 days. During the nonnesting seasons the gull migrates out to sea. It feeds on sea wastes, fish, carrion, and so forth. The glaucous gull causes large losses to bird nesting grounds by destroying nests.

REFERENCES

Ptitsy Sovetskogo Soiuza, vol. 3. Edited by G. P. Dement’ev and N. A. Gladkov. Moscow, 1951.


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Fecal samples from glaucous gulls (Larus hyperboreus) were enriched (18 h at 37[degrees]C) in brain-heart infusion broth (Becton Dickinson, Franklin Lakes, NJ, USA) supplemented with aztreonam and vancomycin (10 mg/L and 4 mg/L, respectively; ICN Biomedicals Inc.
At least two glaucous gulls continue to inhabit the Menai Straits, but five avocets that spent a weekend at RSPB Conwy moved on, despite mating and prospecting for nests.
Studies on glaucous gulls (Larus hyperboreus) breeding in the Barents Sea have reported that high blood levels of halogenated organic contaminants in this species might cause reproductive, behavioral, and developmental stress.
 
 
 
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