Vega Rivera et al. • FLAMMULATED FLYCTACHER ECOLOGY 
765 
No data exist on population size or trends, but 
local extirpations and ongoing severe deforestation 
suggest the species may be declining. Only 27% of 
the original cover of the tropical deciduous forest 
remained intact in 1990 in Mexico, and less than 
10% of the area covered with deciduous forest is 
under some type of protection (Trejo and Dirzo 
2000. CONANP 2009). Stotz et al. (1996) suggested 
that severe habitat disturbance in most of the dry 
forest zones in the Neotropics has greatly affected 
binds that are deciduous forest specialists. They 
identified the Flammulated Flycatcher as one of 
eight conservation ‘indicator' species in the tropical 
deciduous forest of the Pacific lowlands of Mexico, 
where the Chamela-Cuixmala Biosphere Reserve is 
the only area protecting this forest type, even though 
intensive changes in land use are occurring 
regionally. We hope the information in this paper 
will aid in conservation efforts for this species and 
its endangered habitat, encouraging research in 
annual movements and habitat use of this flycatcher. 
ACKNOWLEDGMENTS 
We thank Gloria X. Matambii Gonzdlez and Irais Medina 
Montano for assistance in the field. We thank J. H. Rappole, 
John Klicka. and Eugenia Gonzfllez del Castillo for 
valuable suggestions and editorial comments that improved 
this paper. Partial funding for fieldwork was pros ided by 
Institute de Biologia. UNAM (DGAP-PAPP1T grant # 
IN212605 - 3) and CONACyT fellowship # 231223 to FCC. 
Logistic support in the form of vehicles, equipment, and 
office space was provided by the Estacirin de Biologia 
Chamela, Institute de Biologia, UNAM. 
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