Crossbill call types (1 Viewer)

Interesting eBird article on North American crossbill call types:

http://ebird.org/content/ebird/news...america-species-and-red-crossbill-call-types/

...and I thought it was complicated in Scotland!

Very interesting indeed. Thanks for the link

kb57 said:

Interesting eBird article on North American crossbill call types:

http://ebird.org/content/ebird/news...america-species-and-red-crossbill-call-types/

...and I thought it was complicated in Scotland!

Click to expand...

Oh, you have no idea!
That's only one hemisphere and likely incomplete.

Thanks for posting

Re. the comment "With relatively few recordings from Mexico, there is much complexity yet to be understood, including the very interesting possibility that an additional Type might exist in the hard to get to lowlands of the pine savannas areas of the Mosquitia (pers. comm. John van Dort) of Honduras"

For anyone interested in these crossbills see pps. 333-334 of "Howell, T. R. 1972. Birds of the lowland pine savanna of northeastern Nicaragua. Condor 74:316–340" https://sora.unm.edu/sites/default/files/journals/condor/v074n03/p0316-p0340.pdf