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Tufted Jay Cyanocorax dickeyi

IUCN Red List Criteria

Near Threatened (criteria nearly met) B1ab(ii,iii,v);C2a(i) 

IUCN Red List history

Year Category
2013 Near Threatened
2012 Near Threatened
2008 Near Threatened
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Near Threatened

Species attributes

Migratory status not a migrant Forest dependency High
Land mass type continent
Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 13,400 medium
Number of locations 11-100 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 10000-19999 medium Estimated 0
Population trend Decreasing -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 6.1 - - -
Population justification: BirdLife International estimates the species's EOO at 13,400 km2, based on information provided by Lammertink et al. (1996). It is estimated that 65-90% of the species range is occupied by home ranges (M. Lammertink in litt. 2010) , resulting in an estimate of 8,700-12,000 km2 of occupied habitat. An estimate of 3 km2 per territory is derived from Croisin (1967) by M. Lammertink (in litt. 2010), suggesting that there are 2,900-4,000 groups in total. Each group has two adults and 9.3 individuals (n=7), implying that there are 5,800-8,000 breeding adults within a population of 27,000-37,200 individuals. Based on the supposition that there are more than two mature individuals per group, the population is placed in the band for 10,000-19,999 mature individuals.
Trend justification: Although some populations may be stable, the overall population is suspected to be in slow decline (M. Lammertink in litt. 2010, C. Villar Rodríguez et al. in litt. 2012) owing to the species's susceptibility to forest destruction (Madge and Burn 1993). The rate of decline may accelerate over the next three generations (C. Villar Rodríguez et al. in litt. 2012).

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Mexico Native Extant       Yes

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry major resident
Forest Subtropical/Tropical Moist Montane major resident
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable resident
Altitude 1350 - 2150 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops / Agro-industry farming Timing Scope Severity Impact
Future Minority (<50%) Negligible declines No/Negligible Impact: 2
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops / Small-holder farming Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals / Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Species mortality
Biological resource use Logging & wood harvesting / Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Future Minority (<50%) Negligible declines No/Negligible Impact: 2
Stresses
Ecosystem degradation, Ecosystem conversion
Climate change & severe weather Droughts Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact: 6
Stresses
Indirect ecosystem effects, Ecosystem degradation

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Sport Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Cyanocorax dickeyi. Downloaded from http://www.birdlife.org on 22/10/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/10/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Near Threatened
Family Corvidae (Crows and jays)
Species name author Moore, 1935
Population size 10000-19999 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 13,400 km2
Country endemic? Yes
Links to further information
- Summary information on this species