Savannah Sparrow (Passerculus sandwichensis) Science Article 3 abstract We compared the incubation behaviour of 1-year-old female Savannah Sparrows Passerculussandwichensis nesting for the first time with that of older females that had nested in previousyears on Kent Island, New Brunswick, Canada. Using temperature probes inserted into 32nests, we determined the length and variability of incubation shifts […]
GEOGRAPHIC VARIATION IN EASTERN NORTH AMERICAN SAVANNAH SPARROWS
Savannah Sparrow (Passerculus sandwichensis) Science Article 4 abstract In attempting to identify Ohio specimens of the Savannah sparrow, the writer was confronted with the usual difficult problem familiar to investigators in this confusing group of birds. He was not long in discovering what had already been suspected, that more than one geographic race is represented […]
Ecology and taxonomy of Savannah Sparrow Passerculus sandwichensis in Nuevo Leon, Mexico
Savannah Sparrow (Passerculus sandwichensis) Science Article 5 abstract no abstract Robert A. Behrstock and Ted L. Eubanks, Cotinga 7 (1997): 31-34 Download article download full text (pdf)
ECOLOGY AND BREEDING HABITS OF THE SAVANNA HAWKIN THE LLANOS OF VENEZUELA
Savanna Hawk (Buteogallus meridionalis) Science Article 1 abstract The ecology of the Savanna Hawk (Buteogallus meridionalis) was studied in the palm-savannas of Venezuela in 1978-1980. Pairs produced only one egg per clutch, no more than one young per calendar year, and had eggs or young in nests from February to December, coinciding largely with the […]
Home range and territory of the SardinianWarbler Sylvia melanocephala in Mediterraneanshrubland
Sardinian Warbler (Sylvia melanocephala) Science Article 1 abstract Sardinian Warbler Sylvia melanocephala is the commonest Sylvia warbler in shrubland with a Mediterranean climate with mild winters (Shirihai et al. 2001). It uses a wide range of habitats, such as scrublands and maquis, open forests containing bushy undergrowth, as well as agricultural areas and urban gardens. […]
Reflections of a specialist: patterns in food provisioning and foraging conditions in Sandwich Terns Sterna sandvicensis
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 […]
DIET OF ROYAL (THALASSEUS MAXIMUS) AND SANDWICH (T.SANDVICENSIS ) TERNS DURING THE AUSTRAL WINTER INTHE BUENOS AIRES PROVINCE, ARGENTINA
Sandwich Tern (Sterna sandvicensis) Science Article 4 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)
Breeding biology and colony size of sandwich tern at l’Albufera de Valencia (Western Mediterranean)
Sandwich Tern (Sterna sandvicensis) Science Article 2 abstract This note gives the first information on the breeding of Sandwich Tern at this new site, which has become the extreme Southwest nesting location for the nominate subspecies Ignacio Dies & Bosco Dies, Ardeola 51(2), 2004, 431-435 Download article download full text (pdf)
LIVING WITH GULLS – TRADING OF FOOD AND PREDATION IN THESANDWICH TERN STERNA SANDVICENSIS
Sandwich Tern (Sterna sandvicensis) Science Article 3 abstract The low-lying, sandy areas along the Dutch coast offer important breeding opportunitiesfor Sandwich Terns Sterna sandvicensis. Throughout the twentieth century SandwichTerns nested here in fluctuating numbers. The Dutch population suffered from a majorkill in the 1960s due to pesticide pollution causing the number of breeding pairs todrop […]
Stopover ecology and divers migratory strategies use in the Common Sandpiper (Actitis hypoleucos)
Sandpiper (Actitis hypoleucos) Science Article 2 abstract Obtain information about the stopover ecology of the Common Sandpiper, to identify the divers estategies used by juvenile and adults and its contribution to the differential migration as well as try to explain the differences in the results of studies realized in the coast and interior. Alfonso BALMORI, […]