LC
Grey Silky-flycatcher Ptiliogonys cinereus



Taxonomy

Taxonomic note
The generic name of Ptiliogonys cinereus (del Hoyo and Collar 2016) was previously listed as Ptilogonys following Dowsett & Forbes-Watson (1993); Sibley & Monroe (1990, 1993).

Taxonomic source(s)
AOU. 1998. Check-list of North American birds. American Ornithologists' Union, Washington, D.C.
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
Stotz, D. F.; Fitzpatrick, J. W.; Parker, T. A.; Moskovits, D. K. 1996. Neotropical birds: ecology and conservation. University of Chicago Press, Chicago.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Average mass 33.59999847 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,200,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals poor estimated 2009
Population trend Stable suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 5.6 - - -

Population justification: Partners in Flight estimate the total population to number 500,000-4,999,999 individuals (A. Panjabi in litt. 2008).

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Guatemala N Extant Yes
Mexico N Extant Yes
USA N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Guatemala Antigua Guatemala
Guatemala Atitlan
Guatemala Cerro El Amay
Guatemala Cerro Miramundo
Guatemala Cuchumatanes
Guatemala Cuilco
Guatemala Sacranix
Guatemala Santiaguito Volcano
Guatemala Sierra de las Minas - Motagua
Guatemala Yalijux
Mexico Bosque La Primavera
Mexico Bosques Montanos de Zacapoaxtla y Zautla
Mexico Cerro El Viejo – Puerto Purificación
Mexico Corredor de Barrancas de la Sierra Madre Occidental
Mexico Parque Natural Sierra Nanchititla
Mexico Presa de Valsequillo
Mexico Sierra de Atoyac y Bosques de Niebla de la Costa Grande
Mexico Sierra de Petatlán
Mexico Sierra de Zongolica y Tenango
Mexico Tlanchinol y bosques de montaña del noreste de Hidalgo

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Shrubland Subtropical/Tropical High Altitude major resident
Altitude 1000 - 3500 m Occasional altitudinal limits  

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild Non-trivial Recent

Recommended citation
BirdLife International (2019) Species factsheet: Ptiliogonys cinereus. Downloaded from http://www.birdlife.org on 22/09/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/09/2019.