RT info:eu-repo/semantics/article
T1 Gregariousness and intraspecific aggression in Iberian bullfinches (Pyrrhula pyrrhula iberiae) throughout the year
A1 Hernández Lázaro, Ángel
K1 Agonistic behaviour
K1 Dominance
K1 Flocking
K1 Mobility
K1 Seasonal variation
K1 Vigilance
K1 2401.20 Ornitología
K1 2401.02 Comportamiento Animal
AB This study provides novel information about gregariousness and intraspecific aggression in Iberian bullfinches(Pyrrhula pyrrhula iberiae) in northwestern Spain. Small monospecific parties never exceeding 10 individuals were seen throughout the year, larger in winter on average. Males considerably outnumbered females within the groups. Adult flocks were frequent only in winter. In spring, many of the adult groups were mixed-sexassemblages composed of pairs plus supernumerary males. Sightings of juvenile groups, up to sevenindividuals, were common in summer–autumn. The vigilance role in mixed-sex assemblages, including pairs, appeared to be the responsibility of males based on sex-specific vigilance rates. The highest frequency ofaggressive encounters, mainly male against male, occurred during the breeding season, associated with mate defence. Females attacked males, not the contrary, which supports reversed sexual dominance in bullfinches. Gregariousness probably acted as an anti-predatory and foraging strategy.
PB Brill
SN 0005-7959
YR 2021
FD 2021
LK https://uvadoc.uva.es/handle/10324/64837
UL https://uvadoc.uva.es/handle/10324/64837
LA eng
NO Behaviour, 2021, vol. 159, n.7, p. 615–642
NO Producción Científica
DS UVaDOC
RD 01-jun-2024