Adult: T.h. haematodus: both adults brown/black head with lilac/blue streaks on face; collar yellow/green; red breast banded with blue/black; dark green abdomen; green/yellow thighs to undertail coverts; green upperparts and tail; orange underwing coverts; yellow, wide band under the wing. Bill orange/red. Eye dark orange. T.h. rosenbergii: both adults red band bordering the broad yellow collar; head more evidently streaked lilac/blue; wide purple/blue barring on breast; dark purple abdomen; underwing stripe orange. T.h. micropteryx: both adults differ from haematodus by paler body colour; banding on breast narrower; collar more green. T.h. caeruleiceps: both adults strong lilac/blue streaking on entire crown and sides of head; orange/red breast, thinly barred with blue/black; blue/black upper abdomen; lower abdomen orange/red with more evident blue/black barring. T.h. nigrogularis: both adults as in caeruleiceps but larger in size, with blue streaks on head much darker. T.h. massena: both adults as in micropteryx, but have strong brown wash on occiput and nape; collar less yellowish; paler red breast with fine bars of blue/black. T.h. flavicans: both adults have varying plumage with bronze/yellow to dull green upperparts and undertail coverts; collar yellow; red/brown occiput; purple/blue streaked forehead, lores and area around eyes, remainder of head black, with grey/green streaking; bright red breast with minimal barring. T.h. nesophilus: both adults as in flavicans but with green upper body, undertail coverts and tail which never vary to bronze/yellow. T.h. deplanchii: both adults as in massena but with more blue streaking on head, occiput and nape less brown, and less yellow on thighs to undertail coverts; blue/black markings vary on upper abdomen. T.h. moluccanus: both adults strong purple/blue streaking on entire head; yellow/orange breast with barring minimal or absent; collar yellow/green; deep purple/blue abdomen. T.h. septentrionalis: both adults as in moluccanus, but purple/blue streaking on head brighter; shorter tail. T.h. rubritorquis: both adults black throat and foreneck with streaking absent; collar wide and orange/red, reaching down sides of neck to connect with orange/red breast; breast barring absent; purple/blue hindneck, with varying red marks; green/black abdomen; underwing band wider. T.h. flavotectus: both adults green head with purple/blue streaking on forecrown to cheeks; yellow to deep orange variability on breast; collar wide and yellow; dark green to green/black abdomen; yellow underwing coverts with varying orange markings. T.h. capistratus: both adults as in flavotectus but with more green collar; breast pale yellow; dark green abdomen. T.h. weberi: both adults in general green; light green/blue streaking on forehead and lores, the remainder of head streaked with brighter green; yellow/green underwing coverts; smaller in size. T.h. fortis: both adults black/brown head with purple/blue streaking on forecrown to cheeks; green lores, throat, line above to behind eye and occiput; bright yellow breast with no barring but with orange/red markings; dark green abdomen, with occasional blue/black tints; yellow underwing coverts. T.h. mitchellii: both adults black/brown head with grey/green streaks on crown to cheeks; red/brown wash on occiput; red breast with minimal or no barring; yellow/green collar; purple/black abdomen; smaller in size. T.h. forsteni: both adults as in mitchelli but with darker red breast; purple/blue streaking on forehead and cheeks; more yellow collar bordered on hindneck by purple/blue; purple abdomen; green barring on thighs and flanks minimal; larger in size. T.h. djampeanus: both adults differ from forsteni by head being darker and more evidently streaked brighter purple/blue. T.h. stresemanni: both adults as in forsteni but with paler orange/red breast; green wash on occiput; feathers of mantle having yellow/orange bases. Colourization Juvenile: T.h. haematodus: duller than adult. Bill brown/black. Cere and eye ring grey/white, eye brown. T.h. rosenbergii: as in adults. T.h. micropteryx: as in adults. T.h. caeruleiceps: as in adults. T.h. nigrogularis: as in adults. T.h. massena: as in adults. T.h. flavicans: as in adults. T.h. nesophilus: as in adults. T.h. deplanchii: as in adults. T.h. moluccanus: as in adults. T.h. septentrionalis: as in adults. T.h. rubritorquis: as in adults. T.h. flavotectus: as in adults. T.h. capistratus: as in adults. T.h. weberi: as in adults. T.h. fortis: as in adults. T.h. mitchellii: as in adults. T.h. forsteni: as in adults. T.h. djampeanus: as in adults. T.h. stresemanni: as in adults. Call: Repeated notes, sharp, rolling while in flight. Shrill chattering while feeding. Soft notes at rest.