Together with friends and colleagues Iberus Medioambiente, Sierra-Trek spent a day ringing birds from collonies of these two species. An initiative started in 2008 to deepen an understanding of the biology of these species with respect to birth rate, colony size, and dispersion.

During the course of the day we were able to ring some 21 Kestrel chicks from 6 nests, and a further 5 Jackdaw chicks from 3 nests in two seperate location near our base in Ubeda.

Follow the project on our website- we’ll be blogging more on the subject, and giving findings of our field work in due course.