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Pectoral antwren

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known to determine precise threats, but clearance for irrigated and dry field agriculture has removed extensive tracts of deciduous forest." "Intensive grazing and extensive burning are widespread throughout its range." It occurs in only one small protected area, in Sergipe. "Systematic surveys needed in order to determine true extent of the species’ range and population, as well as the best locations for creation of multiple small reserves."
52: 372:. It typically feeds between 2.5 and 7 m (8 and 23 ft) above the ground and sometimes as high as 12 m (40 ft). It rarely feeds on the ground. It forages actively and methodically, and usually captures prey by gleaning from leaves, stems, and vines by reaching and sometimes lunging from a perch. It often also makes short sallies to hover-glean. It is not known to follow 33: 298:
and white-tipped uppertail coverts. Their wings are black with white-tipped coverts and flight feathers with white edges towards the end. Their innermost tail feathers are black with white edges, the outermost entirely white, and those in between black with white tips. Their throat and underparts are
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originally in 1988 assessed the pectoral antwren as Threatened and since 1994 as Vulnerable. It has a fragmented distribution within its range, especially in MaranhĂŁo. Its estimated population of between 2500 and 10,000 mature individuals is believed to be decreasing. "It is still insufficiently
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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.
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mostly white with a black patch on the breast and gray sides and flanks. Adult females have a rufous crown, brownish olive upperparts, buffish edges on their flight feathers, and buff sides of their neck and their underparts. Their tail is like the male's.
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The pectoral antwren's song is a "high, very fast chattering series of 'tututjdrrrrrr' notes, which rise rather sharply at the start and may finish slightly falling-off to an abrupt ending". Its call is "a flat 'caa' ".
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The pectoral antwren's diet has not been detailed but includes insects and probably spiders. It forages singly, in pairs, and in family groups, and often as a member of a
605:), 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. 798: 837: 286:
The pectoral antwren is 11 to 12 cm (4.3 to 4.7 in) long. Adult males have a black crown and nape with white spots around the former, a long whitish
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The pectoral antwren's breeding season has not been defined but includes August and September. Nothing else is known about the species' breeding biology.
917: 772: 811: 942: 633: 937: 932: 347:. It does not favor any particular stratum of the forest. In elevation it ranges from sea level to 850 m (2,800 ft). 927: 816: 652: 76: 701: 369: 842: 715: 507: 850: 855: 922: 723: 663: 308: 171: 482: 259:. Its relationship to others of its genus is unclear but it apparently is most closely related to the 260: 312: 245: 41: 217: 71: 56: 327:. In both areas the species occurs only locally. The MaranhĂŁo population inhabits deciduous and 803: 546:"Descriptions of twelve new or little-known species of the South American family Formicariidae" 197: 876: 829: 746: 629: 881: 557: 511: 477: 344: 728: 894: 863: 407: 459: 561: 541: 328: 249: 225: 187: 576: 911: 824: 468: 253: 148: 61: 751: 515: 393: 268: 738: 360:
The pectoral antwren is thought to be a year-round resident throughout its range.
785: 695: 545: 324: 287: 686: 32: 889: 295: 275: 128: 88: 868: 680: 606: 373: 339: 333: 108: 294:. Their back and rump are gray with a black and white patch between the 777: 316: 291: 229: 138: 790: 710: 233: 98: 764: 657: 759: 320: 432: 221: 118: 661: 311:. One population is found in far northeastern Brazil from 290:, a narrow black streak through the eye, and grayish ear 267:), and at least one author has considered them to form a 628:. New York: Oxford University Press. pp. 246–247. 601:
Zimmer, K. and M.L. Isler (2020). Pectoral Antwren (
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https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm
483:10.2305/IUCN.UK.2017-3.RLTS.T22701577A118816985.en 387: 550:Proceedings of the Zoological Society of London 8: 337:woodlands, and further south inhabits tall 658: 619: 617: 615: 597: 595: 593: 591: 589: 587: 585: 196: 50: 31: 22: 502: 500: 481: 408:Listen to pectoral antwren on xeno-canto 445: 607:https://doi.org/10.2173/bow.pecant1.01 453: 451: 449: 224:in subfamily Thamnophilinae of family 331:. In Rio Grande do Norte it inhabits 7: 626:A Field Guide to the Birds of Brazil 469:IUCN Red List of Threatened Species 562:10.1111/j.1096-3642.1857.tb01217.x 14: 918:IUCN Red List vulnerable species 392: 323:. The other is somewhat west in 228:, the "typical antbirds". It is 75: 458:BirdLife International (2017). 252:in 1857 and given its current 1: 943:Taxa named by Philip Sclater 653:BirdLife Species Factsheet. 579:retrieved November 27, 2023 370:mixed-species feeding flock 307:The pectoral antwren has a 959: 476:: e.T22701577A118816985. 248:by the English zoologist 244:The pectoral antwren was 195: 177: 170: 72:Scientific classification 70: 48: 39: 30: 25: 895:Herpsilochmus-pectoralis 716:herpsilochmus-pectoralis 702:Herpsilochmus pectoralis 672:Herpsilochmus pectoralis 603:Herpsilochmus pectoralis 462:Herpsilochmus pectoralis 303:Distribution and habitat 274:The pectoral antwren is 257:Herpsilochmus pectoralis 240:Taxonomy and systematics 213:Herpsilochmus pectoralis 181:Herpsilochmus pectoralis 938:Birds described in 1857 933:Endemic birds of Brazil 624:van Perlo, Ber (2009). 609:retrieved March 3, 2024 514:, eds. (January 2024). 542:Sclater, Philip Lutley 928:Birds of the Caatinga 343:woodlands and mature 309:disjunct distribution 261:large-billed antwren 246:originally described 520:IOC World Bird List 313:Rio Grande do Norte 42:Conservation status 510:; Donsker, David; 460:"Pectoral Antwren 218:Vulnerable species 163:H. pectoralis 905: 904: 877:Open Tree of Life 664:Taxon identifiers 635:978-0-19-530155-7 512:Rasmussen, Pamela 414: 413: 319:and northeastern 204: 203: 65: 26:Pectoral antwren 950: 898: 897: 885: 884: 872: 871: 859: 858: 846: 845: 833: 832: 820: 819: 807: 806: 794: 793: 781: 780: 768: 767: 755: 754: 742: 741: 732: 731: 719: 718: 706: 705: 704: 691: 690: 689: 659: 640: 639: 621: 610: 599: 580: 572: 566: 565: 538: 532: 531: 529: 527: 504: 495: 494: 492: 490: 485: 455: 396: 388: 345:secondary forest 208:pectoral antwren 200: 183: 80: 79: 59: 54: 53: 35: 23: 958: 957: 953: 952: 951: 949: 948: 947: 908: 907: 906: 901: 893: 888: 880: 875: 867: 864:Observation.org 862: 854: 849: 841: 836: 828: 823: 815: 810: 802: 797: 789: 784: 776: 771: 763: 758: 750: 745: 737: 735: 727: 722: 714: 709: 700: 699: 694: 685: 684: 679: 666: 649: 644: 643: 636: 623: 622: 613: 600: 583: 573: 569: 540: 539: 535: 525: 523: 506: 505: 498: 488: 486: 457: 456: 447: 442: 429: 420: 415: 410: 405: 404: 402:Songs and calls 382: 366: 358: 353: 305: 284: 265:H. longirostris 242: 191: 185: 179: 166: 74: 66: 55: 51: 44: 17: 16:Species of bird 12: 11: 5: 956: 954: 946: 945: 940: 935: 930: 925: 920: 910: 909: 903: 902: 900: 899: 886: 873: 860: 847: 834: 821: 808: 795: 782: 769: 756: 743: 733: 720: 707: 692: 676: 674: 668: 667: 662: 656: 655: 648: 647:External links 645: 642: 641: 634: 611: 581: 567: 533: 496: 444: 443: 441: 438: 428: 425: 419: 416: 412: 411: 406: 400: 398: 386: 381: 378: 365: 362: 357: 354: 352: 349: 329:gallery forest 304: 301: 283: 280: 250:Philip Sclater 241: 238: 226:Thamnophilidae 202: 201: 193: 192: 186: 175: 174: 168: 167: 160: 158: 154: 153: 146: 142: 141: 139:Thamnophilidae 136: 132: 131: 126: 122: 121: 116: 112: 111: 106: 102: 101: 96: 92: 91: 86: 82: 81: 68: 67: 49: 46: 45: 40: 37: 36: 28: 27: 15: 13: 10: 9: 6: 4: 3: 2: 955: 944: 941: 939: 936: 934: 931: 929: 926: 924: 923:Herpsilochmus 921: 919: 916: 915: 913: 896: 891: 887: 883: 878: 874: 870: 865: 861: 857: 852: 848: 844: 839: 835: 831: 826: 822: 818: 813: 809: 805: 800: 796: 792: 787: 783: 779: 774: 770: 766: 761: 757: 753: 748: 744: 740: 734: 730: 725: 721: 717: 712: 708: 703: 697: 693: 688: 682: 678: 677: 675: 673: 669: 665: 660: 654: 651: 650: 646: 637: 631: 627: 620: 618: 616: 612: 608: 604: 598: 596: 594: 592: 590: 588: 586: 582: 578: 571: 568: 563: 559: 555: 551: 547: 543: 537: 534: 521: 517: 513: 509: 503: 501: 497: 484: 479: 475: 471: 470: 465: 463: 454: 452: 450: 446: 439: 437: 434: 426: 424: 417: 409: 403: 399: 397: 395: 390: 389: 385: 379: 377: 375: 371: 363: 361: 355: 350: 348: 346: 342: 341: 336: 335: 330: 326: 322: 318: 314: 310: 302: 300: 297: 293: 289: 281: 279: 277: 272: 270: 266: 262: 258: 255: 254:binomial name 251: 247: 239: 237: 235: 231: 227: 223: 219: 215: 214: 209: 199: 194: 189: 184: 182: 176: 173: 172:Binomial name 169: 165: 164: 159: 156: 155: 152: 151: 150:Herpsilochmus 147: 144: 143: 140: 137: 134: 133: 130: 129:Passeriformes 127: 124: 123: 120: 117: 114: 113: 110: 107: 104: 103: 100: 97: 94: 93: 90: 87: 84: 83: 78: 73: 69: 63: 58: 47: 43: 38: 34: 29: 24: 21: 19: 671: 625: 602: 570: 556:: 129–133 . 553: 549: 536: 524:. Retrieved 519: 487:. Retrieved 473: 467: 461: 430: 421: 418:Vocalization 401: 391: 383: 367: 359: 338: 332: 306: 285: 273: 269:superspecies 264: 256: 243: 212: 211: 207: 205: 180: 178: 162: 161: 149: 20: 18: 851:Neotropical 786:iNaturalist 696:Wikispecies 508:Gill, Frank 288:supercilium 282:Description 188:Sclater, PL 912:Categories 890:Xeno-canto 516:"Antbirds" 440:References 57:Vulnerable 526:4 January 374:army ants 315:south to 296:scapulars 276:monotypic 157:Species: 95:Kingdom: 89:Eukaryota 830:22701577 804:10459484 729:22701577 724:BirdLife 687:Q1035712 681:Wikidata 544:(1857). 522:. v 14.1 380:Breeding 356:Movement 351:Behavior 340:caatinga 334:restinga 325:MaranhĂŁo 135:Family: 109:Chordata 105:Phylum: 99:Animalia 85:Domain: 62:IUCN 3.1 882:3598983 856:pecant1 843:2591755 778:2490108 765:pecant1 739:pecant1 489:3 March 364:Feeding 317:Sergipe 292:coverts 230:endemic 216:) is a 145:Genus: 125:Order: 115:Class: 60: ( 817:560414 711:ARKive 632:  427:Status 234:Brazil 190:, 1857 869:74363 799:IRMNG 791:15776 760:eBird 752:3L3HC 736:BOW: 321:Bahia 838:NCBI 825:IUCN 812:ITIS 773:GBIF 630:ISBN 528:2024 491:2024 474:2017 433:IUCN 431:The 222:bird 206:The 119:Aves 747:CoL 558:doi 478:doi 232:to 220:of 914:: 892:: 879:: 866:: 853:: 840:: 827:: 814:: 801:: 788:: 775:: 762:: 749:: 726:: 713:: 698:: 683:: 614:^ 584:^ 554:25 552:. 548:. 518:. 499:^ 472:. 466:. 448:^ 376:. 278:. 271:. 236:. 638:. 564:. 560:: 530:. 493:. 480:: 464:" 263:( 210:( 64:)

Index


Conservation status
Vulnerable
IUCN 3.1
Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Aves
Passeriformes
Thamnophilidae
Herpsilochmus
Binomial name
Sclater, PL

Vulnerable species
bird
Thamnophilidae
endemic
Brazil
originally described
Philip Sclater
binomial name
large-billed antwren
superspecies
monotypic
supercilium
coverts
scapulars

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