Nesting type choice in the red-legged partridge (Alectoris rufa)

Abstract

In order to avoid the decrease in the numbers of wild red-legged partridge, Alectoris rufa, observed in several areas, the most appropiate solution is to repopulate using animals from game farms. The nesting place chosen by 30 pairs of red-legged partridge in captivity was studied. There were five different nest types combined in groups of three in 30 cages. Type A nest: made with natural bush plants tied together at one end and placed invertedly forming a cone. Type B: made with the same natural bush plants as the previous type but placed over an internal wire structure and having preformed entrances. Type C: a wooden structure in the form of a roof with two slopes. Type D: similar to the type C but on one of the laterals the opaque material only covers the upper half, and a plastic mesh covers the lower half. Type E: a wooden square box covered with an inclined plank of opaque and waterproof material. Our study shows that the type A nest received significantly (P < 0·05) more eggs than the others, possibly because this type of nest allowed for better vigilance and a better sense of protection for the animals. Type E nest was the second most preferred. In this type, the partridge was able to monitor the surroundings through the space between the walls and the roof and this space could be used as an escape route. From a production and industrial perspective, type E has some advantages over type A, being easy to build, clean and disinfect, and allowing the birds to see through the nest.

Developmental stage of failed eggs in the red-legged partridge Alectoris rufa

“…Their reproductive failure is mainly attributed to nest predation and agricultural practices (Potts 1980;Rands 1998). Although some studies have focused on nest predation (Herranz 2000;Castilla et al 2007a, b) or reproductive performance (Robles et al 2001;CabezasDíaz et al 2005), there is still no clear consensus on causes for the species decline nor on the most vulnerable period for mortality.…”