Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The allele frequencies of the SNP locus near the SWS1 opsin gene in all sampled populations. The darker grey shade on the map indicates zones where the pied flycatcher breeds in sympatry with the collared flycatcher and the lighter grey shade indicates the allopatric breeding distribution.
