Assobiador do castanhal

Assobiador do castanhal
Species: Slaty-capped Shrike-vireo   Vireolanius leucotis
Subspecies: bolivianus
Author: Lindolfo Souto
Sunday, July 12, 2015
Added to IBC: 20 Aug 2015 - 02:11
Your rating: None
Average: 5 (7 votes)
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Altitude (m): 
261 meters


Submitted by Steve Pryor on
Steve Pryor's picture

I had to go to other sources to figure this one out.  It seems that the white malar slash is inconstant (often lacking) in race simplex, which this should be!  In any case, race bolivianus does not range into Brazil.  This bird is, however, within the accepted range sensu HBW of race simplex.


Lindolfo Souto, IBC1097802. Accessible at

Extended version
Lindolfo Souto, IBC1097802. Photo of Slaty-capped Shrike-vireo Vireolanius leucotis at Alta Floresta, Brazil. Accessible at

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