My Media Bin: Evening Grosbeak Call Types
Matthew A Young
5 different Evening Grosbeak call types in North America, some of which might be good biological species.
ML Audio 130768 Notes
Coccothraustes vespertinus (type 5) -- Evening Grosbeak (Mexican or type 5);
14 May 1999;
United States, Arizona;
Type 5. Occupies southern Arizona into Mexico. Need more recordings! 5 calls types roughly match listed subspecies in 1957 AOU checklist.
ML Audio 130769 Notes
Coccothraustes vespertinus (type 4) -- Evening Grosbeak (type 4);
27 May 2011;
United States, Colorado;
Type 4. Is an interior central Rockies call type that sometimes overlaps with type 1.
ML Audio 43986 Notes
Coccothraustes vespertinus (type 3) -- Evening Grosbeak (type 3);
19 Jan 1974;
call; ; mechanical sound;
Type 3. Highly irruptive in east, but in much less numbers since ~1990. Might mix with type 1 where boreal forest meets northern Rockies.
ML Audio 125252 Notes
Coccothraustes vespertinus (type 2) -- Evening Grosbeak (type 2);
13 Jun 2005;
United States, California;
call; ; fly; ; forage;
Type 2. Largely confined to the Sierras. Rarely mixes with type 1 in Washington and perhaps other parts of Pacific Northwest.
ML Audio 105759 Notes
Coccothraustes vespertinus (type 1) -- Evening Grosbeak (type 1);
27 May 1996;
United States, Oregon;
Type 1. Most common type in Pacific Northwest sometimes wandering to Sierras and Rockies, thus mixing with types 2, 4 and possibly 3.