Breeding biology of the House Martin (Delichon urbica) in Badajoz, W Spain

Full article

Published:

Volume 39(1), June 1992. Pages 15-23.

Language:

Spanish

Original title:

Biología de la reproducción del Avión Común (Delichon urbica) en Badajoz, España

Keywords:

breeding, Delichon urbica.

Abstract:

The reproduction of Delichon urbica was studied in Badajoz, Spain, during 1985 y 1986. This seems to be only European locality where three successive clutches are laid. Brood size ranged between 1 and 7 eggs. In first clutches, 5 eggs was most frequently found, 4 in second clutches and 3 in third clutches. From the nests under observation, 9.5% were newly constructed and no third clutches were found there. Also, the percentage of second clutches was smaller than in old nests. The average brood size in first clutches in Extremadura was similar to that in other European localities, but the size of seconds clutches was higher and the percentage of second clutches was lower.