Steely-vented Hummingbirds (Amazilia saucerrottei) are one of the most common hummers in Costa Rica. You'll hear this sound in a lot of your travels there.
Today's #bhlpod features a pg of hummingbird spp. from Biologia Centrali-Americana biodiversitylibrary.org/page/572766. What R the current names 4 these?
A monograph of the Trochilid, or family of humming-birds /.London :Printed by Taylor and Francis ;1861 [i.e. 1849-1861].biodiversitylibrary.org/page/35246333