Bird Ringing
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Recent papers in Bird Ringing
En muchas especies es imposible distinguir visualmente los sexos, si bien en algunas de ellas, machos y hembras muestran pequeñas, pero cuantificables, diferencias biométricas que pueden usarse para discriminarlos. Este es el caso del... more
A survey of nocturnal migrant birds at Dalton Pass, Nueva Vizcaya Province, Luzon, was mounted during October 2009–January 2010 as part of surveys for the Streaked Reed Warbler (Acrocephalus sorghophilus), conducted under joint agreement... more
Muda datado y sexado Sylvia atricapilla
Ramos Melo J.J. & Ramirez, J. (2015). Anillamiento, datado y estatus en Canarias de la tórtola senegalesa. Revista de Anillamiento, n. 34.Otoño 2015: 25 – 31.
Muda datado y sexado Hirundo rustica
Sexes cannot be distinguished with certainty by human observers in many avian species. However, some apparently monomorphic species have small but measurable sexual dimorphisms in biometry, which can be used to determine sex. Here, we... more
A week long study was carried out at the private reserve of Don Luis in Cambyreta in June 2014 which is the winter in Argentina. The initial object was to confirm which avian species habitate two of the island woods at the reserve by... more
The Iberian Chiffchaff Phylloscopus ibericus has recently been accepted as a full species, but is still very difficult to distinguish from the Common Chiffchaff P. collybita when molecular and acoustic evidence is lacking. Distinguishing... more
Muda datado y sexado Parus major
Estimates of bird numbers through quantification of density and range sizes are necessary for decisions regarding conservation status, yet counts of birds are often confounded by uncertainty of detection. The status of the endemic birds... more
RAMOS MELO, J.J., P. GONZÁLEZ DEL CAMPO, J. RAMIREZ & A. DELGADO (2013). Resultados del estudio de la migración de las aves de la región de Souss-Massa. Servicio de análisis de la migración de las aves a Canarias y otras zonas a través... more
We analysed the variation in the abundance of captures of wintering passerines in the roost of San Juan lake (Madrid, Spain), for the period 1994-2014. Estudiamos la variación en la abundancia de capturas de paseriformes en el dormidero... more
Background: The long-term monitoring of demographic changes in waterbird populations remains limited, but such information can be valuable for conservationists and waterbird managers. Biased sex ratios can indicate differences in survival... more
Identifying temporal and spatial patterns in demography are critical to understanding long-term fluctuations in population size. Common Eider Somateria mollissima numbers have shown a long-term decline, resulting in the species being... more
This paper is a detailed description of the life histories of four colour-ringed Egyptian Geese Alopochen aegyptiacus: the male white F / yellow N (WFYN, photo 1) and his three partners. WFYN was ringed as an adult (after 2CY) on 8 June... more
Analyses of 2280 re-encounters made during 2014–20 of 300 adult British Greylag Geese Anser anser marked at Windermere, Cumbria, in summers 2013–16 are used to describe the patterns of their moult migration. Results show that birds... more
Presentamos las memorias de las actividades y proyectos realizados por el Grupo ornitológico Zamalla durante 2019.
Muda datado sexado Carduelis chloris
Awad S., Rz1d I., Busse P. 2013. The ringing site in Jericho (Palestine) – development of bird migration and parasitological research on the Great Rift Valley flyway. Ring 35: 55-63. A new research project near Jericho in the Jordan... more
Capsule. The first confirmed record of breeding by a one-year-old Common Tern Sterna hirundo is revealed by ringing evidence, despite second-summer plumage characteristics.