Additions to the Avifauna of Honduras

I report specimens and sight records of 15 species new to Honduras: Mesembrinibis cayennensis, Falco femoralis, Anous minutus, Ara ambigua, Chalybura urochrysia, Baryphthengus martii, Myrmeciza exsul, Hylopezus perspicillatus, Conopias parva, Lophotriccus pileatus, Dacnis cayana, Vermivora ruficapilla, Tachyphonus delatrii, Pitylus grossus, and Sporophila schistacea. Twelve additional range extensions within Honduras are reported for species that reach their northern limit of distribution in the lowland forests of the Mosquitia region: Tigrisoma lineatum, Leucopternis semiplumbea, Ortalis cinereiceps, Ramphastos swainsonii, Myrmotherula fulviventris, Myrmotherula axillaris, Hylophylax naevioides, Phaenostictus mcleannani, Colonia colonus, Myiozetetes granadensis, Cyporhinus phaeocephalus, and Cacicus uropygialis. With the exception of Anous minutus, Falco femoralis, and Vermivora ruficapilla, all records are range extentions from the south. Some of the northward range extensions into the forests of eastern Honduras from the contiguous forests of Nicaragua were expected, but other records indicate notable range extensions. A list is provided of those species that currently reach their northernmost distribution in Nicaragua and whose presence may be expected in adjacent regions of Honduras. The extensive humid forests in the departments of Olancho and Gracias a Dios are the northernmost limits of numerous species, which may be prevented from further northward dispersal by biogeographic barriers.