Rufous-collared Sparrow (Zonotrichia capensis) Science Article 2 abstract The Rufous-collaredS parrow (Zonotrichia capensisis) one of the most common passerine species in Latin America, ranging from southern Mexico to Tierra de1 Fuego. Although there are studies on the vocal behavior of this species from several locations across SouthAmerica (see King 1974, Nottebohm 1975, Tubaro et al. […]
Biometrics of Ruffs Philomachus pugnax migrating in spring through southern Belarus with special emphasis on the occurrence of
Ruff (Philomachus pugnax) Science Article 2 abstract In spring, the Ruff Philomachus pugnax passes through European inland sites in large numbers. Birds from eastern and western parts of the breeding range may differ in biometrics, but data on this species in eastern Europe are scarce. The aim of this study was to describe the biometrics […]
Two estimates of the metabolic costs of antibody production in migratoryshorebirds: low costs, internal reallocation, or both?
Ruff (Philomachus pugnax) Science Article 1 abstract We measured the costs of mounting a humoral immune response using two novel antigens (tetanus and diphtheria) in two shorebird species (Scolopacid ): Red Knot (Calidris canutus, measured in autumn) and Ruff (Philomachus pugnax, measured in spring). Metabolic rate was measured during the preinjection phase, at the building […]
Seven Nests of Rufescent Tiger-Heron (Tigrisoma lineatum)
Rufescent Tiger Heron (Tigrisoma lineatum) Science Article 2 abstract Little is known about the nesting or breeding behaviour of Rufescent Tiger-Heron (Tigrisoma lineatum). Observations or records of seven nests near the research station Estacion Biologica Cano Palma in Tortuguero National Park, Limon Province, Costa Rica are documented here. Steven Furino and Mario Garcia Quesada, Paper […]
Nesting of the Rufescent Tiger-heron Tigrisoma lineatum on Barro Colorado island (republic of Panama)
Rufescent Tiger Heron (Tigrisoma lineatum) Science Article 1 abstract Lake Gatun, which was created during thebuilding of the Panama Canal. The island,approximately 1642 ha in extent, is coveredmainly with tropical moist forest, both primaevaland secondary, and has the status ofnature reserve since the last 70 years.On 17 April 1998, I found a nest of theRufescent […]
Arrival and weight gain of Red Knot Calidris canutus, Ruddy Turnstone Arenaria interpresand Sanderling Calidris alba staging in Delaware Bay in spring
Ruddy Turnstone (Arenaria interpres) Science Article 6 abstract Delaware Bay is an important spring staging area for shorebirds migrating north along the easternAmerican coast, with birds relying heavily on Horseshoe Crab Limulus polyphemus eggs duringtheir stay. While many species use the Bay, three species are of particular interest: Red KnotCalidris canutus, Ruddy Turnstone Arenaria interpres […]
AGONISTIC BEHAVIOR OF RUDDY TURNSTONES TOWARD SHORT-BILLED DOWITCHERS FORAGING FOR HORSESHOE CRAB EGGS
Ruddy Turnstone (Arenaria interpres) Science Article 5 abstract Ruddy Turnstones (Arenaria interpres) may be highly aggressive toward other species of shorebirds, including the Short-billed Dowitcher (Limnodromus griseus) (Burger et al.1979), but agonistic behavior of turnstones toward dowitchers at specific foraging sites isnot well documented. Turnstones are opportunistic foragers and may use many feeding methods. DOUGLAS […]
Biometrics of Turnstone Arenaria interpret migrating in autumnthrough the Gulf of Gdansk region
Ruddy Turnstone (Arenaria interpres) Science Article 8 abstract In this study we analyse biometrical data of 69 adult and 389 juvenile Turnstones Arenaria interpres caught during autumn migration when passing through the Gulf of Gdansk in the period 1983-1999. Adults had significantly longer wings than juveniles. WLODZIMIERZ MEISSNER and LESZEK KOZIROG, ORNIS SVECICA 11:181-188, 2001 […]
Spring migration of Turnstones from the Banc d’Arguin in Mauritania
Ruddy Turnstone (Arenaria interpres) Science Article 3 abstract The majority of the Turnstones Arenaria interpres wintering on the Banc d’Arguin, Mauritania, probably breeds in N. Scandinavia and NW. Russia, but a sizeable proportion may be derived from Greenland and NE. Canada. Juveniles did not prepare to migrate to the breeding grounds, but in the course […]
The Ruddy Turnstone, Arenaria interpres interpres, a NewDefinitive Host for Gynaecotyla squatarolae (Digenea:Microphallidae)
Ruddy Turnstone (Arenaria interpres) Science Article 4 abstract The ruddy turnstone, Arenaria interpres interpres, a migratory Korean bird, was proved to be a natural definitivehost for Gynaecotyla squatarolae (Digenea: Microphallidae). The ruddy turnstone was found dead at the seashore of Okgueup,Gunsan-si, Jeollabuk-do. The intestinal tract was examined, and 98 unknown flukes were recovered. Min Seo […]