Breeding biology and nest characteristics of the Eurasian Kestrel in different environments on an Atlantic island

We studied reproductive parameters, nest-site characteristics and breeding success of theEurasian Kestrel (Falco tinnunculus canariensis) on Tenerife Island, Canary Archipelago.Kestrels typically breed in cliffs cavities (79.4%), and were present in all habitatsfrom sea level to 2,400 m, except in shrubby heaths (rich in Myrica faya and Ericaarborea) and laurel forests. The breeding cycle was variable and dependent on altitude.Mean laying date for the island was 21March and we found a significant delay of 31