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Títol:     Nota sobre el comportament alimentari de la baldritja balear Puffinus mauretanicus
Autor/es Rebassa, Maties ; Suàrez, Manuel ; Sunyer, Josep R.
Matèries en català: Ocells -- Alimentació -- Illes Balears ; Ornitologia
Matèries en castella: Aves -- Alimentación -- Baleares (Comunidad Autónoma)
Matèries en anglès: Bird feeding-- Spain -- Balearic Islands ; Birds ; Ornithology
Abstract:  [eng] Notes on the foraging behaviour of the Balearic shearwater Puffinus mauretanicus. This note describes the foraging behaviour of a mixed flock of Balearic and Levantine shearwaters, observed during the month of January, just off the coast of Mallorca. The birds moved in a group and dived in the sea with hthe wings partially folded. A second immersion on the same spot started on the sea surface, but then the birds had their heads underwater looking for a potential prey. The wings were beaten underwater. Sometimes the depth reached was a few centimetres under the surface, but also, depths of up to two metres were reached. The maximum period underwater was 30 seconds, and all the prey was swallowed before surfacing.
Font:  Anuari Ornitològic de les Balears 1997, Vol. 12, pp. 125-127
Identificador:  1137-831x
Tipus de document:  info:eu-repo/semantics/article ; info:eu-repo/semantics/publishedVersion
Avís legal:  All rights reserved ; info:eu-repo/semantics/openAccess