DNA metabarcoding Passerine bird feces at tree-line uncovers little intra- and inter-species dietary overlap 

Bookwalter, Jamie; Niyas, Afaq M Mohamed; Caballero-López, Berta; Villari, Caterina; Marco-Tresserras, Jana; Burgas, Albert; Ferrandiz-Rovira, Mariona; Claramunt-López, Bernat (2023-07-04)

High-elevation insectivorous birds are currently confronted with the reality of a changing climate, land use shifts, and the decline of many prey groups. The diet dynamics among many imperiled animals in this group are ...