Laughing Gull (Leucophaeus atricilla) Science Article 5 abstract In spite of increasing public health concerns about the potential risks associated with swimming inwaters contaminated with waterfowl feces, little is known about the composition of the gut microbialcommunity of aquatic birds. To address this, a gull 16S rRNA gene clone library was developed andanalyzed to determine […]
Tag: Leucophaeus atricilla
Environmentally acquired lead in the laughing gull
Laughing Gull (Leucophaeus atricilla) Science Article 2 abstract Lead concentrations were measured in eggs, prefledglings and adult laughinggulls collected near Galveston, Texas. No lead was found in eggs. Prefledglingand adult birds had lead ranging from zero to 16 itg/g wet tissue. Liver had thegreatest lead concentrations followed by brain, heart and skeletal muscle. Therewere no […]
Predation in a salt marsh Laughing Gull colony
Laughing Gull (Leucophaeus atricilla) Science Article 7 abstract As an apparent consequence of predation pressures many colonial seabirds nest in places inaccessible to terrestrial animals (e.g. Crook and GossCustard 1972). In many parts of their breeding range along the Atlantic and Gulf coasts ooe North America Laughing Gulls (Larus atticilia) nest on salt marsh islands, […]
Responses of nesting common terns and laughing gulls to flyovers by large gulls
Laughing Gull (Leucophaeus atricilla) Science Article 4 abstract Disturbance can reduce productivity by disrupting nesting behavior. We examined responses of nesting Common Terns (Sterna hirundo) and Laughing Gulls (Larus atricilla) to frequent overhead flights by Herring (L. argentutus) and Great Black-backed (L. murinus) gulls to determine if such flyovers may have contributed to declines in […]
Laughing gulls (Larus atricilla) and black skimmers (Rynchops nigra) brought to Newfoundland by hurricane
Laughing Gull (Leucophaeus atricilla) Science Article 6 abstract Sea-birds from the West Indies and nearby subtropical regions occasionally occur in New England and the Maritime Provinces of Canada as a result of hurricanes. Peterson (1947) lists three species, the Sooty Tern (Sterna fuscata) and the Noddy (Anous stolidus) which breed at Dry Tortugas and the […]
aerial Photography Techniques to Estimate Populations of Laughing Gull Nests in Jamaica Bay, New York, 1992-1995
Laughing Gull (Leucophaeus atricilla) Science Article 8 abstract We evaluated aerial photography (full coverage, using fixed-wing aircraft) and aerial video (transects, using helicopter) surveys to estimate the population of Laughing Gull (Larus ahicilla) nests in Jamaica Bay, New York, during June 1992-1995. We counted 4,920 nests in the colony using aerial photography and estimated 5,367 […]
Brown pelican foraging success and kleptoparasitism by laughing gulls
Laughing Gull (Leucophaeus atricilla) Science Article 9 abstract Previous studies have shown age-related differences in feeding success for a number of bird species, particularly those found in marine environments. We compared the foraging success of adult and immature Brown Pelicans (Pelecanus occidentalis) feeding along the Playa Miramar northwest of Manzanillo, Colima, Mexico. On many of […]
A vagrant Laughing Gull (Larus africilfa) from Pitcairn Island
Laughing Gull (Leucophaeus atricilla) Science Article 3 abstract During mid-March 1992, I discovered the remains of a Laughing Gull (Lamatricilla) at Down Rope Beach, Pitcairn Island. It appeared to have beendead for approximately one month. The distance from Pitcairn Island tothe wintering grounds of this North American gull is over 5,000 km GRAHAM WRAGG, NOTORNIS […]
The spring moult of larus atricilla linn.
Laughing Gull (Leucophaeus atricilla) Science Article 1 abstract The subject of the alleged color change in full-grown feathers in certain specific cases, would seem hardly worthy of renewed comment after the thorough papers of Allen and Chapman in the ‘Bulletin’ of the American Museum, Vol. VIII, 1896, pp. 1-44, and of others since then. But […]