Internet Bird Collection (IBC) Internet Bird Collection (IBC) Explorer la collection
Black-headed Greenfinch - John and Jemi Holmes
Rapporter

Contributeur

Date

Inconnu

Site d'observation

Carte
Carte Coordonnées: 24.9525459, 101.4922713
Âge
Non précisé
Sexe
Non précisé

Commentaires

A pair mating on a branch. Published in HBW Volume 15 on page 490. Original HBW caption: After pair formation, the male cardueline finch accompanies the female everywhere she goes, guarding her from the attentions of other males. The male is dominant in winter, but becomes subordinate as the breeding season advances. However, in the European Greenfinch (Carduelis chloris), this is often interrupted by outbursts of the “sleeked wings-raised” display by the male, which has a strong aggressive component. This display becomes very much less frequent just before copulation starts. Prior to and during copulation, male finches fluff out their body feathers, as demonstrated by this Black-headed Greenfinch. IBC scientific name: Chloris ambigua ambigua. Original IBC location name and coordinates: Yunnan (24.627,101.821). Elevation: 2203 m. Date added to IBC: June 21, 2016.

Collection

Internet Bird Collection (IBC)

Informations techniques

Modèle
Canon EOS 20D
ISO
100
Longueur focale
560 mm
Flash
Flash did not fire, auto
f-stop
f/8.0
Vitesse d'obturation
1/125 sec
Dimensions
867 pixels x 1300 pixels

Information d'archivage

Catalogué
30 Jan 2020 - Matthew D. Medler
Numérisé
30 Jan 2020 - Matthew D. Medler