| Titre : | Aves 57(2) - JUN 2020 |
| Type de document : | Bulletin |
| Paru le : | 01/06/2020 |
Dépouillements
Article
Louis Bronne, Auteur
During hailstorm flack-headed and Common Gulls in a roost stood ail the same way: facing the wind with the head pointing at about 45 degrees to the horizontal. This position minimizes exposed surface and allows birds to move their head to avoid [...]
Article
Andre Burnel, Auteur
This article descripes and flustrates me differences in the plumage of Blackcaps which are associated with age, and the differences between female and juvenile, using good photos of hand-held birds. Some aberrant plumages are also presented.
Article
Anne Weiserbs, Auteur ;
Alain Paquet, Auteur ;
Martine Wauters, Auteur ;
Damien Sevrin, Auteur
This article presents the results of a survey of the Brussels population of Common Swift which was carried out between 2016 and 2018 under the programme "Monitoring of the State of the Brussels Environment (for which Aves-Natagora has been colla[...]
Article
Alain Jortay, Auteur
This work is the result of a 20 years weekly survey of a Little Grebe breeding population (average 2.0 pairs) in 3 sewage ponds sites of Hesbaye (Belgium). Breeding pairs ere allocated to territories; 444 territories were defined and compared in[...]
