New observations on the status, occurrence and ecology of birds in Bolivia

Abstract

We provide new information on the status, occurrence and ecology of birds in Bolivia gathered during seven years of avifaunal surveys (2017–23), with a focus on aquatic birds, as well as regions such as the Chaco, the Yungas, and Pando. We document five new species for Chuquisaca (Quebracho Crested Tinamou Eudromia formosa, Sharp-billed Canastero Asthenes pyrrholeuca, Scimitar-billed Woodcreeper Drymornis bridgesii, Brown Cacholote Pseudoseisura lophotes, Black-crested Finch Lophospingus pusillus), two for Tarija (Rufous-sided Crake Laterallus melanophaius, Red-backed Sierra Finch Idiopsar brachyurus), two for Pando (Uniform Crake Amaurolimnas concolor, Mississippi Kite Ictinia mississippiensis), two for Beni (Rusty-margined Guan Penelope superciliaris, Connecticut Warbler Oporornis agilis), two for Santa Cruz (Cloud-forest Screech Owl Megascops marshalli, Geoffroy's Daggerbill Schistes geoffroyi) and one for Cochabamba (Fiery-capped Manakin Machaeropterus pyrocephalus). Additionally, we provide the first breeding evidence for one subspecies (Patagonian Grebe Podiceps occipitalis occipitalis) and a range-wide elevational maximum for Hauxwell's Thrush Turdus hauxwelli.