We are just back from banding at one of our forest fragment sites in the small town of San Lorenzo. This fragment of just 3 hectares has a lot of avian diversity in it, but we’re trying to figure out if birds actually stay in it long enough to maintain a territory or if they are just passing through. This was our third year marking birds with metal and color bands at the site, which will allow us to look at metrics such as recapture rate and survival to determine if this fragment acts as high quality habitat for the birds within.

 

White-banded Tyrannulet
This White-banded Tyrannulet was banded two years ago in the same fragment. Thanks to the color band we know that this individual has maintained a territory within the fragment. Photo: I. Ausprey.

 

San Lorenzo with the fragment in the background
San Lorenzo. You can see the fragment in the background beyond the houses.