The aim of our study was to describe the migration timing of two Siberian Locustella species at a breeding site in the Russian Far East. Our results show, that juvenile Lanceolated Warbler Locustella lanceolata leave the study site earlier than adults, while juvenile Pallas's Grasshopper Warbler L. certhiola start their migration later than adults, which might be caused by juveniles and adults moulting at different times. Both species undertake a fast migration without long-term stopovers at the study site.
Migration timing of Pallas’s Grasshopper-warbler (Locustella certhiola) and Lanceolated Warbler (L. lanceolata) at a stopover site in the Russian Far East - https://t.co/9KAC9yC3sh Short Communication Ornithological Science #ornithology