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are rufous and they have a whitish band from the lores that joins a white ring around the eye. Their tail is dark brown. Their throat, breast, and flanks are brown with a reddish tinge and the abdomen is whitish. Other members of the nominate are paler and grayer, especially on the crown, but in the
574:
has assessed the rusty-breasted nunlet as being of Least
Concern. It has an extremely large range but its population is unknown and believed to be decreasing. Its apparent density varies from rare to rather common in various parts of the range, though it might be undercounted due to its unobtrusive
351:
The rusty-breasted nunlet is 14 to 16 cm (5.5 to 6.3 in) long and weighs 17 to 20 g (0.60 to 0.71 oz). The subspecies vary in structure and color from each other. In general, the more northerly subspecies have a longer and narrower bill and a shorter tail than the more southerly
266:
Taxonomists recognize the seven subspecies of rusty-breasted nunlet listed below. However, the species' taxonomy is unsettled. Some of the subspecies might be species in their own right, some might not be valid at all as separate taxa, and the nominate subspecies might actually represent two
708:
Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 August 2021. A classification of the bird species of South
America. American Ornithological Society.
785:
519:
The rusty-breasted nunlet was thought to nest in a burrow, but a 2020 publication revealed that it nests in a shallow scrape on sloping ground that it roofs with twigs and leaves. Over a seven year period the authors studied 17 nests in
Argentina's
663:
Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 August 2021. Species Lists of Birds for South
American Countries and Territories.
677:
Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from
524:; they were in various stages of construction and use when discovered. Most clutches were of four eggs though one had three. Both sexes incubated the eggs and brooded and fed the nestlings.
472:
and forest edges. It can be found at any level within the forest but is most often in the midstory. In
Venezuela it is usually found in areas of sandy soil; in southeastern Brazil's
743:), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA.
971:
1010:
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562:
The rusty-breasted nunlet's song is "a mewing series of 'weeip, weeip, weeip' notes (up to 20) that rise in both pitch and volume". It does not sing often.
757:
Cockle, Kristina L.; Ferreyra, Carlos A.; GĂłmez, Milka R.; Pagano, Luis G.; Bodrati, Alejandro (2020). "Reproductive biology of the Rusty-breasted Nunlet (
945:
1074:
984:
355:
The nominate subspecies has what amounts to two or three color morphs. Some members of it have plain dark gray-brown upperparts and wings. Their
1079:
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southeast are a darker brown with a warmer brown tail. Some have a bright orange-rufous (instead of brown) throat, breast, and flanks.
763:
696:
1099:
989:
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883:
1094:
1015:
76:
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1023:
338:
178:
1028:
870:
797:
595:
297:
693:
Handbook of the Birds of the World and BirdLife
International digital checklist of the birds of the world
888:
161:
835:
932:
862:
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41:
425:
71:
697:
http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v5_Dec20.zip
976:
394:
The rusty-breasted nunlet is found in two disjunct areas. The subspecies are distributed thus:
1002:
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469:
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327:
875:
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208:
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1058:
997:
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416:
255:
61:
56:
188:
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533:
434:, southeastern Colombia and northwestern Brazil between the Negro and Amazon rivers
406:
1041:
898:
440:, northeastern Ecuador, northeastern Peru, and western Brazil south of the Amazon
958:
829:
402:
275:
820:
452:, eastern and southeastern Brazil, eastern Paraguay, and northeastern Argentina
32:
1036:
215:
128:
739:
Rasmussen, P. C., N. Collar, and G. M. Kirwan (2020). Rusty-breasted Nunlet (
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251:
219:
88:
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138:
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424:, southern Venezuela and northern Brazil between the Orninoco and
571:
243:
211:
118:
937:
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507:, both adult and larval. The nunlet occasionally briefly joins
503:
The rusty-breasted nunlet's diet is reported to include large
680:
https://www.birds.cornell.edu/clementschecklist/download/
366:
has a very gray crown and a cinnamon tinge to the vent.
666:
https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm
218:, the puffbirds, nunlets, and nunbirds. It is found in
804:
711:
https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm
456:The rusty-breasted nunlet primarily inhabits humid
639:Gill, F.; Donsker, D.; Rasmussen, P. (July 2021).
405:and northern Brazil to the left bank of the lower
575:behavior. It occurs in several protected areas.
527:
659:
657:
548:Listen to rusty-breasted nunlet on xeno-canto
8:
446:, northern Brazil south of the lower Amazon
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50:
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745:https://doi.org/10.2173/bow.rubnun1.01
691:HBW and BirdLife International (2020)
590:
588:
7:
1065:IUCN Red List least concern species
786:Rusty-breasted nunlet photo gallery
609:IUCN Red List of Threatened Species
14:
764:The Wilson Journal of Ornithology
415:, eastern Venezuela north of the
409:; "hypothetical" in French Guiana
532:
75:
378:a darker tail than the others.
1075:Birds of the Amazon rainforest
641:"IOC World Bird List (v 11.2)"
1:
509:mixed-species foraging flocks
468:forest, and is also found in
386:has warmer brown underparts.
747:retrieved November 10, 2021
1116:
1080:Birds of the Guiana Shield
713:retrieved August 24, 2021
695:Version 5. Available at:
682:Retrieved August 25, 2021
668:retrieved August 24, 2021
186:
167:
160:
72:Scientific classification
70:
48:
39:
30:
25:
390:Distribution and habitat
262:Taxonomy and systematics
1100:Birds described in 1824
600:"Rusty-breasted Nunlet
382:is drab and dark while
267:subspecies or species.
699:retrieved May 27, 2021
596:BirdLife International
374:has a grayer tail and
26:Rusty-breasted nunlet
399:N. r. tapanahoniensis
364:N. r. tapanahoniensis
272:N. r. tapanahoniensis
199:rusty-breasted nunlet
1090:Birds of the Cerrado
422:N. r. interfluvialis
372:N. r. interfluvialis
294:N. r. interfluvialis
370:has a rufous chin.
42:Conservation status
207:) is a species of
1095:Birds of Paraguay
1052:
1051:
798:Taxon identifiers
554:
553:
522:Misiones Province
342:
331:
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309:
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195:
194:
65:
1107:
1045:
1044:
1042:Nonnula-rubecula
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863:5A555E8C439F7E04
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850:Nonnula_rubecula
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602:Nonnula rubecula
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470:secondary forest
432:N. r. simulatrix
376:N. r. simulatrix
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305:N. r. simulatrix
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204:Nonnula rubecula
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171:Nonnula rubecula
153:N. rubecula
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542:Songs and calls
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480:, and in upper
438:N. r. cineracea
401:, the southern
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384:N. r. cineracea
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313:N. r. cineracea
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254:, and possibly
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16:Species of bird
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450:N. r. rubecula
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476:it occurs in
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444:N. r. simplex
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417:Orinoco River
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380:N. r. simplex
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324:N. r. simplex
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308:Parkes (1970)
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162:Binomial name
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57:Least Concern
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644:. Retrieved
617:. Retrieved
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558:Vocalization
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485:
474:Paraná state
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413:N. r. duidae
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407:Amazon River
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368:N. r. duidae
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283:N. r. duidae
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20:
18:
1024:Neotropical
959:iNaturalist
830:Wikispecies
619:10 November
459:terra firme
347:Description
317:Sclater, PL
1059:Categories
1037:Xeno-canto
579:References
505:arthropods
216:Bucconidae
129:Piciformes
484:it shuns
252:Venezuela
220:Argentina
147:Species:
95:Kingdom:
89:Eukaryota
1003:22682301
977:11303660
876:22682301
871:BirdLife
821:Q1264332
815:Wikidata
646:July 14,
598:(2016).
515:Breeding
494:Behavior
490:forest.
482:Amazonia
248:Suriname
240:Paraguay
228:Colombia
109:Chordata
105:Phylum:
99:Animalia
85:Domain:
62:IUCN 3.1
1070:Nonnula
1029:rubnun1
951:2475122
925:rubnun1
899:rubnun1
858:Avibase
499:Feeding
403:Guianas
352:ones.
287:Chapman
232:Ecuador
181:, 1824)
140:Nonnula
135:Genus:
125:Order:
115:Class:
60: (
1016:190665
990:554368
938:914762
566:Status
465:várzea
428:rivers
341:(1824)
330:(1937)
319:(1881)
300:(1970)
298:Parkes
289:(1914)
278:(1968)
236:Guyana
224:Brazil
972:IRMNG
920:eBird
912:47PNM
896:BOW:
889:89088
788:VIREO
487:igapĂł
426:Negro
357:lores
1011:NCBI
998:IUCN
985:ITIS
964:1576
946:GBIF
884:BOLD
761:)".
648:2021
621:2021
614:2016
572:IUCN
570:The
462:and
339:Spix
328:Todd
276:Mees
244:Peru
212:bird
197:The
179:Spix
119:Aves
933:EoL
907:CoL
845:ADW
769:132
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623:.
604:"
201:(
177:(
64:)
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