Sandwich Tern (Sterna sandvicensis) Science Article 1 abstract Highly specialised piscivorous seabirds, like S andwich Terns Sterna sandvicensis, have limited capacity to switch to alternative prey species when the availability of a particular prey species is low. Therefore, variations in the diet of such species are likely to reflect fluctuations in food availabi lity. We […]
Category: Laridae
Predation by Kelp Gulls Larus dominicanus at a mixed-species colony of Royal Terns Sterna maxima and Cayenne Terns Sterna eurygnatha in Patagonia
Royal Tern (Sterna maxima) Science Article 2 abstract We studied the predator-prey interaction between Kelp Gulls Larus dominicanus and Royal Terns Sterna maxima and Cayenne Terns Sterna eurygnatha at Punta Leon, Argentina, from 1990 to 1992. Kelp Gulls were the main predator of tern eggs in all 3 years, accounting for 99% of observed predations […]
Foraging Habitat and Chick Diets of Roseate Tern, Sterna dougallii, Breeding on Country Island, Nova Scotia
Roseate Tern (Sterna dougallii) Science Article 2 abstract Breeding seabirds are threatened by human activities that affect nesting and foraging habitat.In Canada, one of the seabirds most at risk of extirpation is the Roseate Tern, Sterna dougallii. Althoughcritical nesting habitat has been identified for the Roseate Tern in Canada, its foraging locations and thediet of […]
Activity patterns and effect of ticks on growth and survival of tropical roseate tern nestlings
Roseate Tern (Sterna dougallii) Science Article 1 abstract Patterns of abundance of the seabird tick Amblyomma loculosum and their effectson Roseate Tern (Sterna dougallii) nestling growth, fledging age, and survival are describedon Aride Island, Seychelles, in 1997-1999. Female ticks attached to nestlings from 4to 14 days (to engorge) whereas male ticks attached for 1-3 days. […]
A Second Breeding Site for Ross’s Gull (Rhodostethia rosea) in Nunavut, Canada
Rosss Gull (Rhodostethia rosea) Science Article 1 abstract Only 15 cases of breeding of Ross’s gull Rhodostethia rosea are known outside of Siberia. While numerous birdsare regularly seen in the fall at Point Barrow, Alaska, until now only one breeding locality has been known for Nunavut, Canada.We found a second breeding locality in Nunavut in […]
ROYAL TERN NESTING ATTEMPTS IN CALIFORNIA: ISOLATED OR SIGNIFICANT INCIDENTS?
Royal Tern (Sterna maxima) Science Article 4 abstract Only four nesting attempts are known for the Royal Tern (Sterna maxima) in California, all at the San Diego Bay salt evaporating ponds. This paper describes t e two most recent nesting attempts in detail and discusses all four attempts in terms of coincidental events in California […]
DIET OF ROYAL (THALASSEUS MAXIMUS) AND SANDWICH (T.SANDVICENSIS ) TERNS DURING THE AUSTRAL WINTER INTHE BUENOS AIRES PROVINCE, ARGENTINA
Royal Tern (Sterna maxima) Science Article 3 abstract The northern and central part of the coast in Buenos Aires Province (Argentina) presentsimportant roosting areas where several marine bird species aggregate during the australwinter. Marco Favero et al., ORNITOLOGIA NEOTROPICAL 11: 259-262, 2000 Download article download full text (pdf)
Royal Tern (Sterna maxima) Chick Diet at Fisherman Island National Wildlife Refuge, Virginia
Royal Tern (Sterna maxima) Science Article 1 abstract Royal Tern (Sterna maxima) chick diet at Fisherman Island National Wildlife Refuge, Virginia, was investigated in 2003 and 2004. Primary objectives were to document common prey species, annual and seasonal variation in prey selection, and seasonal variation in prey size based on average bill length in this […]
The known history and movements of the Roseate Tern Sterna dougallii in South Africa and the western Indian Ocean
Roseate Tern (Sterna dougallii) Science Article 3 abstract The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate Tern The Roseate […]
Importance of migrating salmon smolt in Ring-Billed (Larus delawarensis) and California Gull (L. californicus) diets near Priest Rapids Dam, Washington
Ring-billed Gull (Larus delawarensis) Science Article 2 abstract Ring-billed (Larus delawarensis) and California Gulls (L. californicus) have been implicated in depredations on migrating salmon smolt in the Columbia River. As part of a gull management program conducted in 1995 and 1996, we collected L. delawarensis (n = 120) and L. californicus (n = 45) near […]