Birdwatchers’ hearts flutter for Global Big Day
Retired physician Cecilia Martinez feeds a hummingbird known as a Brown Violetear at a sanctuary in Venezuela, on May 13, 2023. With excitement in their voices, six birdwatchers raise binoculars and scan the treetops in a private sanctuary not far from Venezuela’s capital Caracas. Look, one says, there’s a blue-gray tanager. Another spots a warbler.…