Conhecidas como gavião papa-peixe, elas são monitoradas via satélite por pesquisadores da Universidade da Carolina do Norte.

Soon after I began studying birds in the Amazon, twenty-some years back, I got to know a nocturnal call given on moonlit nights, but I couldn’t tell where it came from. It was a long, melancholy whistle, like the sound you hear from a falling bombshell in war movies just before the explosion: ”weeeeeeeeeeooooooooh”.