Family Toucans (Ramphastidae)

Least Concern

Blue-throated Toucanet (Aulacorhynchus caeruleogularis)


Taxonomy

French: Toucanet à gorge bleue German: Blaukehlarassari Spanish: Tucanete gorjiazul
Taxonomy:

Aulacorhamphus caeruleogularis

Gould

, 1854,

Cerro Flores, eastern Chiriquí, Panama

.

Until recently, considered conspecific with A. prasinus along with A. wagleri, A. albivitta, A. cyanolaemus and A. atrogularis. Differs from A. prasinus in its royal-blue vs white chin, throat and subocular cheek (3); extensive black along cutting edge of upper mandible (2); richer brown-shot crown and nape (2); moss-green vs rich bluish-green underparts (ns[2]). Differs from A. albivitta in its royal-blue vs white chin, throat and subocular cheek (3); grey vs pink periorbital skin (3); richer brown-shot crown and nape (2); narrower black line along cutting edge of upper mandible (ns[1]). Species status for the subspecies cognatus has been claimed#R, the main characters that distinguish it being size and the lack of a rusty spot at base of upper mandible#R, but to date the evidence on size remains unpublished and the rusty spot is also lacking in the population E from Ngöbe-Buglé (WC Panama)#R. Proposed race maxillaris (Costa Rica, W Panama) is here treated as synonymous with caeruleogularis. Two subspecies currently recognized.

Subspecies and Distribution
  • A. c. caeruleogularis Gould, 1853 – Blue-throated Toucanet – Costa Rican mountains to W Panama.
  • A. c. cognatus Nelson, 1912 – Violet-throated Toucanet – C & E Panama S to W Colombia (N Chocó).
  • Descriptive notes

    32–37 cm; male 118–173 g, female 139–167 g (caeruleogularis), male 160–184 g, female 155 g (cognatus). Green toucanet with black-and-yellow bill; tail... read more

    Voice

    Similar to A. prasinus, an often prolonged series of variable barking to growling, frog-... read more

    Habitat

    Wet montane and submontane deciduous forest, cloudforest, edges, and well-developed ­secondary... read more

    Food and feeding

    Fruits include lauraceous species (Ocotea, Nectandra, Phoebe) and solanaceous species (Solanum, ... read more

    Breeding

    Mar–Jul in Costa Rica, to Aug in Panama; usually double-brooded (especially in captivity). Displays with nodding, head-jerking, tail-... read more

    Movements

    Occasionally wanders much lower in post-breeding season, and is most abundant at 1000–1400 m in... read more

    Status and conservation

    Not globally threatened. Considered common to abundant in Costa Rica, common in Panama, but has very small range in northernmost Colombia (where confined to Cerro Tacarcuna... read more

    Recommended citation

    del Hoyo, J., Collar, N. & Kirwan, G.M. (2020). Blue-throated Toucanet (Aulacorhynchus caeruleogularis). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/467420 on 25 February 2020).