Biologist, retired
I used this in Nicaragua and it was a big help. Shortcomings: alphabetical listing is by the first word in the common name. You cant search for "dove, inca" or "dove, mourning", you have to search for "inca" or "mourning" which makes no sense at all. The photos are wonderful.
Families are listed, but not in alphabetical order, a real drag.
It wouldnt take much to make this a great ap for us amateur birders.
Youngalaska about
Costa Rica Birds