La Tour du Valat

Article

Changing numbers of breeding birds in the Sheffield area

Dave Gosney, Auteur

Dans British Birds (108(2) FEB 2015)

This paper illustrates some of the changes in bird populations in the Sheffield area between 1988-90 and 2008-11, using data from Timed Tetrad Visits to compare the numbers of birds counted in each period. It compares the merits of this approach[...]

Plus d'information...

Ajouter au panier