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 […]
Category: Charadriiformes
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 […]
Predicting the population consequences of human disturbance for Ringed Plovers Charadrius hiaticula: a game theory approach
Ringed Plover (Charadrius hiaticula) Science Article 2 abstract Human disturbance and its potential impacts upon bird populations are currently topical and contentious issues for conservationists. Although many studies have revealed a behavioural impact, or even direct effect on breeding success or survival, these cannot usually be extended to predict the impact on population size. Here […]
Different timing of autumn migration of two Ringed Plover Charadrius hiaticula subspecies through the southern Baltic revealed by biometric analysis
Ringed Plover (Charadrius hiaticula) Science Article 1 abstract Ringed Plovers were trapped in Puck Bay (southern Baltic) between 1983 and 2002 during autumn migration. In adults a clear decrease of mean wing and bill lengths occurred between the third decade (ten-day period) of July and the first decade of August. A similar pattern was observed […]
METABOLISM AND THERMOREGULATION IN HATCHLING WESTERN GULLS
Ring-billed Gull (Larus delawarensis) Science Article 9 abstract Parental attentiveness provides hatchlings of many precocial and serniprecocial birds with a large measure of protection from the vagaries of the thermal environment. Nonetheless some of these species differ in thermoregulatory capacity of newly hatched chicks, in correlation with climatic conditions during the breeding season. WILLIAM R. […]
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 […]