Two-barred Crossbill Loxia leucoptera bifasciata (Gmelin 1789)
Appearance: Medium-sized finch red (adult males), yellowish-red (immature males) to greyish-green (females and juveniles) finch with distinctive mandibles curved and crossed at the tip.
Distribution: Northern Scandinavia to Siberia
Two-barred Crossbill Loxia leucoptera bifasciata
-> N Europe to E Siberia and NW China
White-winged Crossbill Loxia leucoptera leucoptera
-> Alaska, Canada and N USA
Object of study: Taxonomic status
FiRN Needs: Recordings from the entire distribution area would be appreciated.