Knowledge (XXG)

Bicolored hawk

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These hawks capture prey in a stealthy manner by flying through dense vegetation to ambush unsuspecting prey. They may also capture prey through aerial pursuit after inconspicuously sitting and watching their target. At times, the bicoloured hawk may hunt in pairs. Most commonly, it feeds on smaller
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The bicolored hawk is widespread but uncommonly observed. Its range extends from Mexico to west Ecuador, the Guianas to Colombia, south to east Peru, through Amazonian Brazil to Paraguay, north-northwestern Argentina,north of Uruguay,Bolivia and to Chile. It mainly resides in forest, along forest
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Bicolored hawks breed in forest areas, choosing to build nests on tree branches and occasionally hanging vines. The nest is built in cooperation between the male and female and is constructed from dried sticks and leaves. Each breeding pair will normally build a new nest at the beginning of each
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occurs after breeding activities such as feeding and nest building have been completed. Egg laying takes place approximately five weeks after copulation and the dull white eggs measure an average of 47.1 mm Ă— 36.5 mm; clutches average 1–3 eggs. The eggs are
527:. There are fewer hawks in disturbed habitats such as forests that have been logged, and even fewer in those fragmented habitats that provide greater than 66% forest cover. These hawks are rarely present in forests that provide less than 66% forest cover. 486:
is larger). As in other hawks, the female is far larger than the male. Adults are grey above with darker wings and crown, and a banded tail. The underparts typically vary from dark grey to very pale grey, but the southern subspecies can sometimes be
423:, 1817) – found in Southeastern Mexico and south through northern South America. Adults have a black crown, slate upper parts and a blackish tail that displays two or three pale bars. The primaries are obscurely barred. 842:
Mindell, D.; Fuchs, J.; Johnson, J. (2018). "Phylogeny, taxonomy, and geographic diversity of diurnal raptors: Falconiformes, Accipitriformes, and Cathartiformes". In Sarasola, J.H.; Grange, J.M.; Negro, J.J. (eds.).
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edges and in clearings in tropical and locally subtropical zones, although its habitat is none too specialized. It may also reside in rain forest, drier, thinned forest, and palm savanna with gallery forest.
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Juliien, M.; Thiollay, J.M. (1996). "Effects of Rain Forest Disturbance and Fragmentation: Comparative Changes of the Raptor Community Along Natural and Human-Made Gradients in French Guiana".
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around 30–36 days after hatching and the fledgling period spans nearly seven weeks, during which the young will return to the nest frequently for food until they become independent.
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Catanach, T.A.; Halley, M.R.; Pirro, S. (2024). "Enigmas no longer: using ultraconserved elements to place several unusual hawk taxa and address the non-monophyly of the genus
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The bicolored hawk is difficult to detect due to its shyness and inconspicuousness. Because of this behaviour, the bicolored hawk may be more common than it seems.
1526: 1644: 1619: 447:, 1917) – located in South Bolivia and northern Argentina. The underparts of the adult are grey or extensively salmon rufous with large white spots and bars. 1461: 1634: 1500: 950: 854: 596:
have been witnessed. In addition, these hawks may follow groups of monkeys in order to feed on the insects that are exposed by the monkeys.
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Its vocalisations are mainly subdued and unnoticeable. Males have been heard to give a soft, clear whistle and females can emit a loud "
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Nouveau dictionnaire d'histoire naturelle, appliquée aux arts, à l'agriculture, à l'économie rurale et domestique, à la médecine, etc
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Mikula, P.; Morelli, F.; LuÄŤan, R. K.; Jones, D. N.; Tryjanowski, P. (2016). "Bats as prey of diurnal birds: a global perspective".
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At 34–45 centimetres (13–18 in) in length and 200–450 grams (7.1–15.9 oz) in weight, it is significantly smaller than the
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or rufous below, and sometimes with dark streaks. Their upperparts are browner than in adults, and the thighs are sometimes paler.
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in most of its range, but it does not occur at altitudes above 2,700 metres (8,900 ft) such as the highest parts of the
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for about three weeks by the female while the male forages for food. Bicolored hawk chicks are categorized as
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was resurrected to accommodate 9 species, including the bicolored hawk, that had previously been placed in
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of North America, but it is among the largest hawks in Central and South America (only the rare
382: 1492: 1565: 1518: 1435: 1162: 1116: 1044: 1015: 946: 850: 755: 719: 520: 483: 433:& Noble, 1918) – occurs in Eastern and Southern Mexico. It is morphologically similar to 555:" vocalisation upon arrival to the nest with food, to which the female replies with a nasal " 1570: 1217: 1154: 1099:
gavião-bombachinha-grande (Accipiter bicolor) | WikiAves – A Enciclopédia das Aves do Brasil
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negatively affect the habitat and quantity of the bicolored hawk, which is most abundant in
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but due to its differences in habitat preferences and plumages from the bicolored hawk,
231: 1624: 1291: 1098: 585: 784:(in French). Vol. 10 (Nouvelle Ă©dition ed.). Paris: Deterville. p. 325. 1613: 1513: 1264: 1077: 1037: 844: 712: 649: 500: 491:
below. The thighs are always pure rufous (not always easily seen), and the underwing
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Stotz, D.; Fitzpatrick, J. W.; Parker, Theodore A. III; Moskovits, Debra K. (1996).
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study of the Accipitridae confirmed earlier work that had shown that the genus was
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Overview – Bicolored Hawk (Accipiter bicolor) – Neotropical Birds
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are white in the northern subspecies and rufous in the southern.
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del Hoyo, Josep; Elliott, Andrew; Sargatal, Jordi, eds. (1994).
116: 1324: 278:). Though generally uncommon, it is the most common species of 581: 580:, but has also been known to consume small mammals, including 1159:
10.1676/0043-5643(2000)112[0195:BBANSC]2.0.CO;2
973:. Globalraptors.org (2012-07-27). Retrieved on 2013-04-03. 846:
Birds of Prey: Biology and conservation in the XXI century
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The Peregrine Fund: Global Raptor Information Network
882:"Hoatzin, New World vultures, Secretarybird, raptors" 588:. Several instances where the hawks attack groups of 1333: 1136: 1134: 1132: 1036: 994:. Vol. 2. New York: McGraw-Hill Book Company. 711: 664:10.2305/IUCN.UK.2020-3.RLTS.T22695669A168769390.en 457:, 1823) – living in Brazil. Adults are similar to 373:The bicolored hawk is also closely related to the 262:, plantations, and wooded savanna in southeastern 1101:. WikiAves (2009-07-11). Retrieved on 2013-04-03. 478:and North America, and somewhat smaller than the 966: 964: 962: 1005: 1003: 1001: 849:. Cham, Switzerland: Springer. pp. 3–32. 745: 743: 741: 739: 737: 735: 985: 983: 981: 979: 934: 932: 930: 547:" when around the nest and young. A barking " 8: 437:, but is larger in size and darker in color. 750:Ferguson-Lees, J.; Christie, D. A. (2001). 714:Neotropical Birds: Ecology and Conservation 1321: 1267:. People.eku.edu. Retrieved on 2013-04-03. 230: 48: 29: 20: 1115:. Princeton: Princeton University Press. 821:Biological Journal of the Linnean Society 662: 1014:. Chicago: University of Chicago Press. 718:. Chicago: University of Chicago Press. 631: 345:was divided into six genera. The genus 992:Eagles, Hawks and Falcons of the World 499:are very variable. They can be white, 1237:"Notes on Eggs of the Bicolored Hawk 1039:A Guide to the Birds of South America 888:. International Ornithologists' Union 868: 866: 798:; Cottrell, G. William, eds. (1979). 7: 1141:Thorstrom, R.; Quixchan, A. (2000). 1043:. Wynnewood: Livingston Publishing. 300:in 1817 by the French ornithologist 1645:Taxa named by Louis Pierre Vieillot 1620:IUCN Red List least concern species 1235:Thorstrom, R.; Kiff, L. F. (1999). 650:IUCN Red List of Threatened Species 258:. It is found in forest, woodland, 1299:Bicolored Hawk (Accipiter bicolor) 942:Handbook of the Birds of the World 819:(Accipitriformes: Accipitridae)". 409:is now considered a full species. 14: 1078:10.1046/j.1365-2699.1996.00963.x 886:IOC World Bird List Version 14.2 801:Check-List of Birds of the World 412:Four subspecies are recognised: 73: 639:BirdLife International (2020). 1635:Birds of prey of South America 1312:– The Internet Bird Collection 990:Brown, L.; Amadon, D. (1968). 1: 1035:de Schauensee, R. M. (1970). 1283:– Cornell Lab of Ornithology 915:. Cornell Lab of Ornithology 1012:Manual of Neotropical Birds 913:The Key to Scientific Names 357:Bernard Germain de LacĂ©pède 270:, and northern and central 211:- (Bangs & Noble, 1918) 1661: 1248:Journal of Raptor Research 829:10.1093/biolinnean/blae028 521:primary undisturbed forest 359:. The genus name is from 329:. In 2024 a comprehensive 274:(as far south as northern 657:: e.T22695669A168769390. 229: 199: 194: 175: 168: 70:Scientific classification 68: 46: 37: 28: 23: 1630:Birds of Central America 1306:– BirdLife International 507:Distribution and habitat 1640:Birds described in 1817 1066:Journal of Biogeography 549:kra-kra-kra-kr-kr-kr-ka 515:Forest disturbance and 296:The bicolored hawk was 1297:Associação MĂŁe-da-lua 1111:Hilty, Steven (2003). 880:, eds. (August 2024). 776:Vieillot, Louis Pierre 393:. Until recently, the 389:); these three form a 331:molecular phylogenetic 1010:Blake, E. R. (1977). 337:. To resolve the non- 752:Raptors of the World 686:"Accipiter bicolor" 40:Conservation status 1113:Birds of Venezuela 907:Jobling, James A. 876:; Donsker, David; 298:formally described 250:) is a species of 223:- (Temminck, 1823) 217:- (Hellmayr, 1917) 205:- (Vieillot, 1817) 1607: 1606: 1597:Accipiter-bicolor 1566:Open Tree of Life 1379:Accipiter_bicolor 1365:Accipiter bicolor 1335:Accipiter bicolor 1327:Taxon identifiers 1292:Accipiter bicolor 1239:Accipiter bicolor 1222:10.1111/mam.12060 971:Accipiter bicolor 952:978-84-96553-45-3 878:Rasmussen, Pamela 856:978-3-319-73744-7 643:Accipiter bicolor 484:grey-bellied hawk 407:A. chilensis 399:A. chilensis 387:A. gundlachi 238: 237: 63: 1652: 1600: 1599: 1587: 1586: 1574: 1573: 1561: 1560: 1548: 1547: 1535: 1534: 1522: 1521: 1509: 1508: 1496: 1495: 1483: 1482: 1470: 1469: 1457: 1456: 1444: 1443: 1431: 1430: 1421: 1420: 1408: 1407: 1395: 1394: 1392:FB27427BB7288B30 1382: 1381: 1369: 1368: 1367: 1354: 1353: 1352: 1322: 1268: 1262: 1256: 1255: 1245: 1232: 1226: 1225: 1205: 1199: 1193: 1187: 1186: 1138: 1127: 1126: 1108: 1102: 1096: 1090: 1089: 1061: 1055: 1054: 1042: 1032: 1026: 1025: 1007: 996: 995: 987: 974: 968: 957: 956: 945:. Vol. II. 936: 925: 924: 922: 920: 904: 898: 897: 895: 893: 870: 861: 860: 839: 833: 832: 812: 806: 805: 792: 786: 785: 772: 766: 765: 747: 730: 729: 717: 707: 701: 700: 698: 696: 682: 676: 675: 673: 671: 666: 636: 590:squirrel monkeys 563:Food and feeding 472:northern goshawk 379:A. cooperii 370:meaning "hawk". 309:Sparvius bicolor 234: 181: 78: 77: 57: 52: 51: 33: 21: 1660: 1659: 1655: 1654: 1653: 1651: 1650: 1649: 1610: 1609: 1608: 1603: 1595: 1590: 1582: 1577: 1569: 1564: 1556: 1553:Observation.org 1551: 1543: 1538: 1530: 1525: 1517: 1512: 1504: 1499: 1491: 1486: 1478: 1473: 1465: 1460: 1452: 1447: 1439: 1434: 1426: 1424: 1416: 1411: 1403: 1398: 1390: 1385: 1377: 1372: 1363: 1362: 1357: 1348: 1347: 1342: 1329: 1316:Planet of Birds 1310:Bicoloured Hawk 1304:Bicoloured Hawk 1281:Bicoloured Hawk 1277: 1272: 1271: 1263: 1259: 1243: 1234: 1233: 1229: 1207: 1206: 1202: 1194: 1190: 1147:Wilson Bulletin 1140: 1139: 1130: 1123: 1110: 1109: 1105: 1097: 1093: 1063: 1062: 1058: 1051: 1034: 1033: 1029: 1022: 1009: 1008: 999: 989: 988: 977: 969: 960: 953: 938: 937: 928: 918: 916: 906: 905: 901: 891: 889: 872: 871: 864: 857: 841: 840: 836: 814: 813: 809: 794: 793: 789: 774: 773: 769: 762: 749: 748: 733: 726: 709: 708: 704: 694: 692: 684: 683: 679: 669: 667: 638: 637: 633: 628: 605:breeding year. 602: 586:Chilean pigeons 565: 541: 533: 525:riparian forest 509: 468: 403:A. bicolor 383:Gundlach's hawk 311:. He specified 294: 268:Central America 190: 183: 177: 164: 161:A. bicolor 127:Accipitriformes 72: 64: 53: 49: 42: 24:Bicolored hawk 17: 16:Species of bird 12: 11: 5: 1658: 1656: 1648: 1647: 1642: 1637: 1632: 1627: 1622: 1612: 1611: 1605: 1604: 1602: 1601: 1588: 1575: 1562: 1549: 1536: 1523: 1510: 1497: 1484: 1471: 1458: 1445: 1432: 1422: 1409: 1396: 1383: 1370: 1355: 1339: 1337: 1331: 1330: 1325: 1319: 1318: 1313: 1307: 1301: 1295: 1289: 1284: 1276: 1275:External links 1273: 1270: 1269: 1257: 1227: 1216:(3): 160–174. 1200: 1188: 1153:(2): 195–202. 1128: 1121: 1103: 1091: 1056: 1049: 1027: 1020: 997: 975: 958: 951: 926: 899: 862: 855: 834: 807: 787: 767: 760: 731: 724: 702: 677: 630: 629: 627: 624: 616:semi-altricial 601: 598: 568:birds such as 564: 561: 540: 537: 532: 529: 508: 505: 467: 464: 463: 462: 451:A. b. pileatus 448: 441:A. b. guttifer 438: 424: 302:Louis Vieillot 293: 290: 254:in the family 242:bicolored hawk 236: 235: 227: 226: 225: 224: 221:A. b. pileatus 218: 215:A. b. guttifer 212: 206: 197: 196: 192: 191: 184: 173: 172: 166: 165: 158: 156: 152: 151: 144: 140: 139: 134: 130: 129: 124: 120: 119: 114: 110: 109: 104: 100: 99: 94: 90: 89: 84: 80: 79: 66: 65: 47: 44: 43: 38: 35: 34: 26: 25: 15: 13: 10: 9: 6: 4: 3: 2: 1657: 1646: 1643: 1641: 1638: 1636: 1633: 1631: 1628: 1626: 1623: 1621: 1618: 1617: 1615: 1598: 1593: 1589: 1585: 1580: 1576: 1572: 1567: 1563: 1559: 1554: 1550: 1546: 1541: 1537: 1533: 1528: 1524: 1520: 1515: 1511: 1507: 1502: 1498: 1494: 1489: 1485: 1481: 1476: 1472: 1468: 1463: 1459: 1455: 1450: 1446: 1442: 1437: 1433: 1429: 1423: 1419: 1414: 1410: 1406: 1401: 1397: 1393: 1388: 1384: 1380: 1375: 1371: 1366: 1360: 1356: 1351: 1345: 1341: 1340: 1338: 1336: 1332: 1328: 1323: 1317: 1314: 1311: 1308: 1305: 1302: 1300: 1296: 1293: 1290: 1288: 1285: 1282: 1279: 1278: 1274: 1266: 1265:Parental Care 1261: 1258: 1254:(3): 244–247. 1253: 1249: 1242: 1240: 1231: 1228: 1223: 1219: 1215: 1211: 1210:Mammal Review 1204: 1201: 1197: 1192: 1189: 1184: 1180: 1176: 1172: 1168: 1164: 1160: 1156: 1152: 1148: 1144: 1137: 1135: 1133: 1129: 1124: 1122:0-691-09250-8 1118: 1114: 1107: 1104: 1100: 1095: 1092: 1087: 1083: 1079: 1075: 1071: 1067: 1060: 1057: 1052: 1050:0-87098-027-0 1046: 1041: 1040: 1031: 1028: 1023: 1021:0-226-05641-4 1017: 1013: 1006: 1004: 1002: 998: 993: 986: 984: 982: 980: 976: 972: 967: 965: 963: 959: 954: 948: 944: 943: 935: 933: 931: 927: 914: 910: 903: 900: 887: 883: 879: 875: 869: 867: 863: 858: 852: 848: 847: 838: 835: 830: 826: 822: 818: 811: 808: 803: 802: 797: 791: 788: 783: 782: 777: 771: 768: 763: 761:0-7136-8026-1 757: 753: 746: 744: 742: 740: 738: 736: 732: 727: 725:0-226-77630-1 721: 716: 715: 706: 703: 691: 687: 681: 678: 665: 660: 656: 652: 651: 646: 644: 635: 632: 625: 623: 621: 617: 613: 608: 599: 597: 595: 591: 587: 583: 579: 575: 571: 562: 560: 558: 554: 550: 546: 539:Vocalisations 538: 536: 530: 528: 526: 522: 518: 517:fragmentation 513: 506: 504: 502: 498: 494: 490: 485: 481: 480:Cooper's hawk 477: 473: 465: 460: 459:A. b. bicolor 456: 452: 449: 446: 442: 439: 436: 435:A. b. bicolor 432: 428: 425: 422: 418: 417:A. b. bicolor 415: 414: 413: 410: 408: 404: 400: 396: 392: 388: 384: 380: 376: 375:Cooper's hawk 371: 369: 365: 362: 358: 354: 350: 349: 344: 340: 336: 332: 328: 327: 322: 321:type locality 318: 317:French Guiana 314: 310: 307: 306:binomial name 303: 299: 291: 289: 287: 283: 282: 277: 273: 272:South America 269: 265: 261: 260:second growth 257: 253: 249: 248: 247:Astur bicolor 243: 233: 228: 222: 219: 216: 213: 210: 207: 204: 203:A. b. bicolor 201: 200: 198: 193: 188: 182: 180: 179:Astur bicolor 174: 171: 170:Binomial name 167: 163: 162: 157: 154: 153: 150: 149: 145: 142: 141: 138: 135: 132: 131: 128: 125: 122: 121: 118: 115: 112: 111: 108: 105: 102: 101: 98: 95: 92: 91: 88: 85: 82: 81: 76: 71: 67: 61: 56: 55:Least Concern 45: 41: 36: 32: 27: 22: 19: 1334: 1260: 1251: 1247: 1238: 1230: 1213: 1209: 1203: 1191: 1150: 1146: 1112: 1106: 1094: 1069: 1065: 1059: 1038: 1030: 1011: 991: 940: 917:. 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Retrieved 654: 648: 642: 634: 603: 574:mockingbirds 566: 556: 552: 548: 544: 542: 534: 514: 510: 469: 458: 450: 440: 434: 427:A. b. fidens 426: 416: 411: 406: 402: 398: 395:Chilean hawk 391:superspecies 386: 378: 372: 367: 363: 352: 346: 342: 335:polyphyletic 324: 308: 295: 279: 256:Accipitridae 252:bird of prey 246: 245: 241: 239: 220: 214: 209:A. b. fidens 208: 202: 178: 176: 160: 159: 147: 137:Accipitridae 18: 1540:Neotropical 1475:iNaturalist 1359:Wikispecies 1072:(1): 7–25. 874:Gill, Frank 823:: blae028. 796:Mayr, Ernst 690:Wikispecies 670:11 November 545:cac cac cac 466:Description 195:Subspecies 1614:Categories 1592:Xeno-canto 1294:– WikiAves 626:References 607:Copulation 576:and small 304:under the 1167:0043-5643 919:22 August 892:21 August 817:Accipiter 695:2 January 531:Behaviour 497:Juveniles 489:rufescent 353:Accipiter 343:Accipiter 339:monophyly 326:Accipiter 276:Argentina 155:Species: 93:Kingdom: 87:Eukaryota 1579:Species+ 1519:22695669 1493:10583055 1405:22695669 1400:BirdLife 1344:Wikidata 1183:85796764 778:(1817). 600:Breeding 594:tamarins 570:thrushes 455:Temminck 445:Hellmayr 421:Vieillot 292:Taxonomy 187:Vieillot 133:Family: 107:Chordata 103:Phylum: 97:Animalia 83:Domain: 60:IUCN 3.1 1545:bichaw1 1467:2480599 1454:bichaw1 1428:bichaw1 1387:Avibase 1350:Q597105 1175:4164195 1086:2846013 909:"Astur" 612:brooded 493:coverts 476:Eurasia 368:asturis 319:as the 313:Cayenne 189:, 1817) 143:Genus: 123:Order: 113:Class: 58: ( 1571:901450 1532:321116 1506:175310 1181:  1173:  1165:  1119:  1084:  1047:  1018:  949:  853:  758:  722:  620:fledge 381:) and 264:Mexico 1625:Astur 1558:73239 1488:IRMNG 1449:eBird 1441:64G6T 1425:BOW: 1418:69459 1244:(PDF) 1179:S2CID 1171:JSTOR 1082:JSTOR 578:doves 431:Bangs 364:astur 361:Latin 348:Astur 286:Andes 281:Astur 148:Astur 1584:7110 1527:NCBI 1514:IUCN 1501:ITIS 1480:5137 1462:GBIF 1413:BOLD 1163:ISSN 1117:ISBN 1045:ISBN 1016:ISBN 947:ISBN 921:2024 894:2024 851:ISBN 756:ISBN 720:ISBN 697:2021 672:2021 655:2020 582:bats 557:wreh 501:buff 240:The 117:Aves 1436:CoL 1374:ADW 1218:doi 1155:doi 1151:112 1074:doi 825:doi 659:doi 592:or 559:". 553:kek 523:or 474:of 315:in 1616:: 1594:: 1581:: 1568:: 1555:: 1542:: 1529:: 1516:: 1503:: 1490:: 1477:: 1464:: 1451:: 1438:: 1415:: 1402:: 1389:: 1376:: 1361:: 1346:: 1252:33 1250:. 1246:. 1214:46 1212:. 1177:. 1169:. 1161:. 1149:. 1145:. 1131:^ 1080:. 1070:23 1068:. 1000:^ 978:^ 961:^ 929:^ 911:. 884:. 865:^ 754:. 734:^ 688:. 653:. 647:. 572:, 366:, 341:, 288:. 266:, 1241:" 1224:. 1220:: 1185:. 1157:: 1125:. 1088:. 1076:: 1053:. 1024:. 955:. 923:. 896:. 859:. 831:. 827:: 764:. 728:. 699:. 674:. 661:: 645:" 641:" 453:( 443:( 429:( 419:( 397:( 385:( 377:( 244:( 185:( 62:)

Index


Conservation status
Least Concern
IUCN 3.1
Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Aves
Accipitriformes
Accipitridae
Astur
Binomial name
Vieillot

bird of prey
Accipitridae
second growth
Mexico
Central America
South America
Argentina
Astur
Andes
formally described
Louis Vieillot
binomial name
Cayenne
French Guiana

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