33:
388:
82:
204:
430:
outside protected areas has been deforested within its historical range for human encroachment, logging and conversion for agricultural purposes." It is considered uncommon across its range. It does occur in several protected areas, most of them in the northern part of its range. "More survey work is needed in order to assess the distribution and population levels of present species in portions of its range".
57:
611:
369:. It feeds mostly between about 0.5 and 5 m (2 and 20 ft) above the ground, though it will feed as high as 15 m (50 ft). It actively, but methodically, seeks prey especially among vine tangles and also from leaves both live and dead, stems, and branches, mostly by reaching and stabbing. It also captures prey by hanging, hover-gleaning, and with short sallies from a perch.
429:
originally in 1994 assessed the unicolored antwren as
Vulnerable, then in 2004 as Near Threatened, and since 2023 as being of Least Concern. It has a large range; its population size is not known and is believed to be decreasing. The main threat is habitat loss. "Virtually all lowland Atlantic forest
302:
The unicolored antwren is 9 to 10 cm (3.5 to 3.9 in) long and weighs 6.5 to 8 g (0.23 to 0.28 oz). It is a smallish bird with a short tail. Adult males are almost entirely gray, with lighter underparts than upperparts. Their throat feathers have black bases and gray tips. Adult
377:
The unicolored antwren's breeding season is not known but active nests have been noted in
November. The nest is a cup made from roots, dead leaves, and fungal fibers hung from a branch fork, typically within about 2 m (7 ft) of the ground. The clutch size, incubation period, time to
561:
Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, G. Del-Rio, A. Jaramillo, D. F. Lane, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 26 November 2023. A classification of the bird species of South
America. American Ornithological Society.
307:. Their wings are dark grayish brown with reddish yellow-brown edges on the flight feathers. Their tail is reddish yellow-brown. Their throat is whitish and their underparts mostly olive-buff that is grayer on their sides and flanks. Their
343:
woodlands that grow on white-sand soils. It favors dense viny understory in somewhat stunted forest with a canopy up to about 20 m (70 ft) high. In elevation it ranges from sea level to about 500 m (1,600 ft).
416:
The unicolored antwren's song is an "irregular series of very high, sharp, drawn-out, well-separated 'Seeep' notes". Its calls include a "sharp 'wheet' ", "paired nasal notes", and "longer, flat, raspy notes".
365:
The unicolored antwren's diet is not known in detail but is probably mostly mostly insects and spiders. It forages singly, in pairs, or in family groups, and often as part of a
548:), 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.
767:
806:
32:
886:
741:
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896:
590:
906:
901:
621:
785:
81:
692:
366:
811:
496:
193:
670:
615:
819:
303:
females have olive-brown upperparts with a grayish tinge on the crown and nape and yellowish brown uppertail
824:
679:
632:
324:
697:
891:
176:
471:
283:
46:
76:
772:
845:
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715:
586:
328:
500:
466:
336:
332:
850:
684:
203:
832:
320:
275:
247:
448:
863:
401:
267:
227:
563:
880:
793:
457:
357:
The unicolored antwren is believed to be a year-round resident throughout its range.
66:
61:
720:
504:
387:
291:
259:
153:
707:
754:
664:
255:
655:
610:
858:
263:
133:
93:
837:
649:
549:
340:
113:
746:
308:
304:
231:
143:
759:
235:
103:
733:
626:
728:
426:
223:
123:
630:
323:. It is found along coastal southeastern Brazil from northern
294:
group with similar vocalizations and habitat requirements.
585:. New York: Oxford University Press. pp. 242–243.
544:
Zimmer, K. and M.L. Isler (2020). Unicolored
Antwren (
378:
fledging, and details of parental care are not known.
639:
564:
https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm
472:10.2305/IUCN.UK.2023-1.RLTS.T22701524A223525251.en
381:
331:. It inhabits the understorey to mid-storey of
8:
627:
576:
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572:
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402:Listen to unicolored antwren on xeno-canto
202:
55:
31:
22:
491:
489:
470:
319:The unicolored antwren is a bird of the
439:
550:https://doi.org/10.2173/bow.uniant1.01
226:in subfamily Thamnophilinae of family
7:
583:A Field Guide to the Birds of Brazil
887:IUCN Red List least concern species
458:IUCN Red List of Threatened Species
339:. In a few areas it also occurs in
14:
609:
386:
230:, the "typical antbirds". It is
80:
447:BirdLife International (2023).
246:The unicolored antwren and the
266:. The unicolored antwren, the
1:
254:) were previously considered
897:Birds of the Atlantic Forest
262:. The unicolored antwren is
622:BirdLife Species Factsheet.
566:retrieved November 27, 2023
552:retrieved February 14, 2024
367:mixed-species feeding flock
923:
40:Male in São Paulo, Brazil
465:: e.T22701524A223525251.
201:
182:
175:
77:Scientific classification
75:
53:
44:
39:
30:
25:
315:Distribution and habitat
242:Taxonomy and systematics
907:Birds described in 1835
902:Endemic birds of Brazil
581:van Perlo, Ber (2009).
503:, eds. (January 2024).
864:Myrmotherula-unicolor
671:Myrmotherula unicolor
641:Myrmotherula unicolor
616:Myrmotherula unicolor
546:Myrmotherula unicolor
451:Myrmotherula unicolor
219:Myrmotherula unicolor
186:Myrmotherula unicolor
449:"Unicolored Antwren
327:south into northern
325:Rio de Janeiro state
311:is brownish yellow.
284:plain-winged antwren
509:IOC World Bird List
290:) appear to form a
47:Conservation status
26:Unicolored antwren
499:; Donsker, David;
222:) is a species of
214:unicolored antwren
874:
873:
846:Open Tree of Life
633:Taxon identifiers
592:978-0-19-530155-7
501:Rasmussen, Pamela
408:
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329:Rio Grande do Sul
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337:secondary forest
333:evergreen forest
234:to southeastern
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168:M. unicolor
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396:Songs and calls
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363:
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321:Atlantic Forest
317:
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276:Alagoas antwren
258:and now form a
248:Alagoas antwren
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197:
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79:
71:
60:
56:
49:
17:
16:Species of bird
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5:
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618:at Wikispecies
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604:External links
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268:Yungas antwren
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228:Thamnophilidae
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144:Thamnophilidae
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177:Binomial name
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134:Passeriformes
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62:Least Concern
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892:Myrmotherula
640:
582:
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513:. Retrieved
508:
476:. Retrieved
462:
456:
450:
442:
424:
415:
412:Vocalization
395:
385:
376:
364:
356:
318:
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292:monophyletic
287:
279:
271:
260:superspecies
251:
245:
218:
217:
213:
211:
185:
183:
167:
166:
155:Myrmotherula
154:
20:
18:
820:Neotropical
755:iNaturalist
665:Wikispecies
497:Gill, Frank
478:14 February
335:and mature
298:Description
282:), and the
256:conspecific
881:Categories
859:Xeno-canto
515:January 4,
505:"Antbirds"
434:References
272:M. grisea
264:monotypic
194:Ménétriés
162:Species:
100:Kingdom:
94:Eukaryota
799:22701524
773:11397912
685:22701524
680:BirdLife
656:Q1038577
650:Wikidata
511:. v 14.1
373:Breeding
353:Movement
348:Behavior
341:restinga
288:M. behni
280:M. snowi
252:M. snowi
140:Family:
114:Chordata
110:Phylum:
104:Animalia
90:Domain:
67:IUCN 3.1
825:uniant1
812:1109082
747:2490194
734:uniant1
708:uniant1
361:Feeding
309:crissum
305:coverts
274:), the
232:endemic
196:, 1835)
150:Genus:
130:Order:
120:Class:
65: (
786:561430
698:111384
589:
421:Status
236:Brazil
851:68876
838:74348
768:IRMNG
760:15828
729:eBird
721:45D22
705:BOW:
807:NCBI
794:IUCN
781:ITIS
742:GBIF
693:BOLD
587:ISBN
517:2024
480:2024
463:2023
427:IUCN
425:The
224:bird
212:The
124:Aves
716:CoL
467:doi
883::
861::
848::
835::
822::
809::
796::
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571:^
525:^
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488:^
461:.
455:.
238:.
595:.
519:.
482:.
469::
453:"
286:(
278:(
270:(
250:(
216:(
192:(
69:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
