Brown Thrasher (Toxostoma rufum) Science Article 11 abstract Food hoarding is a widespread and complex behavior (Vander Wall 1990). Most research has focused on cache placement or food recovery by the hoarding animal, or on cache theft by conspecifics or by other food-hoarding species. Here, I document the way in which Brown Thrashers (Toxostoma rufum) […]
BROWN THRASHER NEST REUSE: A TIME SAVING RESOURCE, PROTECTION FROM SEARCH-STRATEGY PREDATORS, OR CUES FOR NEST-SITE SELECTION?
Brown Thrasher (Toxostoma rufum) Science Article 8 abstract Population of Brown Thrashers (Toxostoma rufam) nesting on the Konza Prairie Research Natural Area in northeastern Kansas. We determined whether thrashers reuse nests constructed in previous years, and tested predictions of the hypothesis that old nests function to reduce the risk of nest predation by saturatingt he […]
Vocal virtuosity in the Brown Thrasher
Brown Thrasher (Toxostoma rufum) Science Article 7 abstract Ethograms, or catalogues of behavioral acts, in a variety of animal species have typically revealed a relatively limited and finite number of behaviors DONALD E. KROODSM AND LINDA D. PARKER, Auk, Vol. 94 Download article download full text (pdf)
BROWN PELICAN FORAGING SUCCESS AND KLEPTOPARASITISM BY LAUGHING GULLS
Brown Pelican (Pelecanus occidentalis) Science Article 1 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 […]
CLIMATOLOGICAL EFFECTS ON THE BREEDING OF TERNS
Brown Noddy (Anous stolidus) Science Article 6 abstract The physical circulation in the Western Indian Ocean controls the supply of nutrients, and this, combined with the stability of the surface layer and the availability of sunlight controls the primary production. In this note, we review two papers’ findings on how the physical conditions ultimately impact […]
Experiments on Nestling Recognition by Brown Noddies (Anous stolidus
Brown Noddy (Anous stolidus) Science Article 1 abstract Davies and Carrick (1962) suggested that adults should distinguish their own young from offspring of neighboring conspecifics by the time their young become mobile enough to leave the nest and mix with other youngbirds. The influence of the type of nest in shaping recognition behavior is illustrated […]
South Carolina Specimen of the Brown Noddy
Brown Noddy (Anous stolidus) Science Article 2 abstract The Brown Noddy (Anous stolidus) breeds in the tropics and subtropics as far north as the northern Bahamas and the Dry Tortugas, Florida. In winter it stays in warm tropical or subtropical waters, usually within 100 km of nesting colonies (Chardine and Morris 1996). Will Post et […]
Longevity of the Brown Noddy
Brown Noddy (Anous stolidus) Science Article 5 abstract Despite its abundance and pantropical range, little published information exists on the longevity of the Brown Noddy (Anous stolidus). Woodward (atoll Research Bull., 164: 280, 1972) reported a maximum known survival of 10 years for Brown Noddies banded as adults onKure Atoll, Hawaii. William Y. Brown, Bird […]
Egg specific gravity and incubation in the Sooty Tern and Brown Noddy
Brown Noddy (Anous stolidus) Science Article 4 abstract Flotation characteristics of birds’ eggs are commonly used to estimate their age. Schreiber (1970) and Hays and LeCroy (1971) have recently attempted to quantify the relationship between the appearance (degree of emergence and position) larid eggs placed in water and the age of the eggs. William Y. […]
Progressive Analysis of Avian Vocal Repertoires with Special Reference to the Brown Noddy
Brown Noddy (Anous stolidus) Science Article 3 abstract Three steps are necessary in the study of avian vocal repertoires (aside from developmental and physiological aspects) (.1) The various vocalizations and the situations (context) under which they are given must be identified and described under natural conditions. The description should be objective enough so the calls […]