Big Day Birding in Costa Rica- Strategies and Constraints
10,000 Birds
MAY 28, 2016
We have to figure out when the highest numbers of migrants coincide with resident breeders to increase the probabilities of breaking the previous record, or to at least hit your Big Day birding goal. However, it also has to give a reasonable chance at identifying all of those birds and that means enough time in the right spots.
100 
Let's personalize your content