Those interested in the talk “Protecting Bird Habitats Outside the U.S.”  that discussed in part the southern directed raptor migration in the fall might check out the web-page

http://birdphotoforum.com/foro/thread-1633.html?highlight=vultures

that contains photographs of north directed spring migrating raptors seen from Caribbean slope Costa Rica particularly the photograph by Alex Vargas from Las Selva.There are also a couple of mine from Punta Uva (Mazanillo). The address is not clickable but just paste in the link to open location and follow the Swallow-tailed Kite link.