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Willow flycatcher

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populations of willow flycatchers increased. In these sites 90% of the willow flycatcher's nests were found in native vegetation, only 10% were in mixed vegetation (native species and saltcedar) and few were in areas dominated by saltcedar. However, because willow flycatchers can and do breed in some locations within saltcedar habitat, it occasionally serves as vital habitat in the recovery of this species.
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subspecies found in Arizona, California, Colorado, Nevada, New Mexico, Texas, and Utah. It was listed in 1995, when it was known to breed at only about 75 sites in riparian areas throughout the American southwest. The breeding population was estimated at between 300 and 500 pairs. Breeding occurs
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The subspecies are best distinguished from each other by their songs. In addition, the four subspecies have significant genetic differences based on mitochondrial DNA analysis. Their winter ranges have been elucidated using mitochondrial DNA genetic studies of 172 birds sampled in winter combined
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found throughout the Southwest, where it has replaced essential vegetation by outcompeting native species in riparian areas where the southwestern willow flycatcher is found. In two sites, one in Arizona and the other in New Mexico, native trees were able to replace patches of saltcedar and
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Adults have brown-olive upperparts, darker on the wings and tail, with whitish underparts; they have an indistinct white eye ring, white wing bars and a small bill. The breast is washed with olive-gray. The upper part of the bill is gray; the lower part is orangish.
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Durst, Scott L.; Theimer, Tad C.; Paxton, Eben H.; Sogge, Mark K. (2008). "Age, habitat, and yearly variation in the diet of a generalist insectivore, the southwestern willow flycatcher".
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in California and to over 2,600 m (8,530 ft) in Arizona, southwestern Colorado, and north-central New Mexico. This subspecies was described by A.R. Phillips in 1948.
505:) are thought to play a critical role in widening riparian width, openings in dense vegetation, and retention of surface water through the willow flycatcher breeding season. 666:, often selecting winter habitat near water. Willow flycatchers travel approximately 1,500–8,000 km (930–4,970 mi) each way between wintering and breeding areas. 685:
Willow flycatchers are generalist insectivores, and the insects which comprise their diet vary substantially across different habitats. For example, flies of the order
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There are four subspecies recognized, all of which breed in North America (including three subspecies that breed in California). At one time, this bird and the
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in 1918, it breeds in California from Tulare County north along the western side of the Sierra Nevada, and in Oregon and Washington west of the Cascade range.
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made up the majority of adult willow flycatcher diets in Ontario, Canada, but only composed 10.6% of the diet of California flycatchers, who instead favor
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Bean, Daniel; Dudley, Tom (2012). "Tamarisk biocontrol, endangered species risk and resolution of conflict through riparian restoration".
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Prescott, David R.C.; Middleton, Alex L. A. (1988). "Feeding-time minimizization and the territorial behavior of the willow flycatcher".
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A Southwestern Willow Flycatcher Natural History Summary and Survey Protocol: Technical Report NPS/NAUCPRS/NRTR-97/12
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Sibley, David Allen (2001). Elphick, Chris; Dunning, Jr., John B.; Sibley, David Allen (eds.).
1538: 1473: 498: 433: 417: 406: 402: 313: 191: 571: 1629: 1388: 1349: 1344: 958: 911: 865:"Saltcedar (Tamarix spp.), endangered species, and biological weed control - Can they Mix?" 1213: 834: 611: 601: 561: 8: 473: 378: 344: 61: 1232: 1071:
Sogge, Mark K.; Marshall, Robert M.; Sferra, Susan J.; Tibbitts, Timothy J. (May 1997).
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Paxton, Eben H.; Unitt, Philip; Sogge, Mark K.; Whitfield, Mary; Keim, Paul (2011).
361:) breeds in California east of the Sierra/Cascade axis, from the Oregon border into 1669: 1424: 1258: 1153:"Habitat, diet, and foraging ecology of willow flycatcher in Sierra Nevada meadows" 1133: 1106: 966: 919: 876: 784: 741: 437: 297: 1585: 1450: 1411: 655: 528: 467:
This species is experiencing population declines throughout the Southwest due to
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in 1828. It breeds from the eastern coast of the United States to the western
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Summer breeding and winter ranges of willow flycatcher subspecies from
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and Pilgrim, De Luz, French, and Las Flores creeks; as well as on the
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The Great Basin/Northern Rockies subspecies of the willow flycatcher (
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and often near water, across the United States and southern
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10.1614/0890-037X(2004)018[1542:STSESA]2.0.CO;2
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Graduate Theses and Dissertations - Utah State University
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The largest remaining population in California is on the
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and invasive grass species. One of these is saltcedar (
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with plumage coloration and morphological differences.
721: 773:"Winter Distribution of Willow Flycatcher Subspecies" 1039: 328:The four subspecies of the willow flycatcher are: 1123: 1024:. Ottawa: National Museum of Canada. p. 255. 945:Sferra, Susan; Paxton, Eben; Sogge, Mark (2008). 944: 747:10.2305/IUCN.UK.2016-3.RLTS.T22699848A93751510.en 1698: 1174:. New York, USA: Alfred A. Knopf. p. 389. 815:. U.S. Fish and Wildlife Service Nevada Office 258:southwestern willow flycatcher survey protocol 862: 1172:The Sibley Guide to Bird Life & Behavior 622: 1231: 901: 304:) were considered to be a single species, 217: 70: 29: 788: 766: 764: 745: 490:to preserve habitat for this subspecies. 1150: 409:and 910 m (3,000 ft) at upper 249: 1019: 658:, and in small numbers as far south as 643:in a vertical fork in a shrub or tree. 1699: 1169: 1064: 1034: 1028: 761: 616:15.5–18.0 mm (0.61–0.71 in) 606:10.5–12.3 mm (0.41–0.48 in) 586:68.7–75.6 mm (2.70–2.98 in) 373:. There has been very little study of 1285: 1284: 1271:Audio recordings of Willow flycatcher 1205:. Colorado Plateau Research Station. 1203:"Southwestern Willow Flycatcher Site" 519:subspecies of the willow flycatcher ( 405:to 800 m (2,640 ft) at the 1487:willow-flycatcher-empidonax-traillii 596:54–64.5 mm (2.13–2.54 in) 464:constitutes the main winter range. 392:The southwestern willow flycatcher ( 312:commemorates the Scottish zoologist 1707:IUCN Red List least concern species 733:IUCN Red List of Threatened Species 377:in California. It was described by 13: 1013: 827: 805: 14: 1753: 1195: 863:DeLoach, CJ; Dudley, Tom (2004). 680: 508: 1742:Taxa named by John James Audubon 971:10.1111/j.1526-100X.2008.00357.x 556:130–150 mm (5.2–6 in) 388:– Southwestern willow flycatcher 350: 95: 1253:Willow flycatcher photo gallery 1214:BirdLife species factsheet for 1163: 1144: 1117: 1090: 722:BirdLife International (2016). 1727:Native birds of Eastern Canada 1722:Native birds of Western Canada 985: 938: 895: 856: 669:This bird's song is a sneezed 534: 339:The little willow flycatcher ( 1: 708: 319: 226:Approximate distribution map 1255:at VIREO (Drexel University) 272:) is a small insect-eating, 7: 1151:Dietrich, Scott E. (2020). 1046:. New York: Knopf. p.  997:. NatureServe Explorer 2.0" 566:13.5 g (0.48 oz) 401:from near sea level on the 365:and possibly into northern 291: 10: 1758: 1732:Birds of the United States 995:Empidonax traillii extimus 843:Cornell Lab of Ornithology 627:Their breeding habitat is 576:220 mm (8.5 in) 335:– Little willow flycatcher 1653: 1293: 1259:Interactive range map of 1240:"Willow flycatcher media" 1042:The Sibley Guide to Birds 1020:Godfrey, W. Earl (1966). 924:10.1007/s10526-011-9436-9 545: 494:considers the subspecies 225: 216: 197: 190: 92:Scientific classification 90: 68: 59: 37: 28: 23: 1245:Internet Bird Collection 1001:explorer.natureserve.org 790:10.1525/cond.2011.090200 740:: e.T22699848A93751510. 646:These neotropical birds 623:Distribution and habitat 484:San Pedro River Preserve 1737:Birds described in 1828 469:habitat loss/alteration 1717:Birds of North America 1111:10.1525/cond.2008.8493 546:Standard Measurements 499:North American beavers 259: 631:thickets, especially 486:was purchased by the 434:Santa Margarita River 418:South Fork Kern River 407:South Fork Kern River 403:Santa Margarita River 314:Thomas Stewart Traill 253: 1223:"Empidonax traillii" 1138:10.1093/auk/105.1.17 673:. The call is a dry 1036:Sibley, David Allen 1022:The Birds of Canada 963:2008ResEc..16..146S 951:Restoration Ecology 916:2012BioCo..57..331D 835:"Willow flycatcher" 523:) was described by 474:Tamarix ramosissima 306:Traill's flycatcher 62:Conservation status 1655:Muscicapa traillii 1643:Empidonax-traillii 1363:empidonax-traillii 1350:Empidonax_traillii 1325:Empidonax traillii 1295:Empidonax traillii 1266:IUCN Red List maps 1261:Empidonax traillii 1216:Empidonax traillii 726:Empidonax traillii 488:Nature Conservancy 426:San Luis Rey River 411:San Luis Rey River 269:Empidonax traillii 260: 243: Non-breeding 201:Empidonax traillii 48:Empidonax traillii 24:Willow flycatcher 1694: 1693: 1625:Open Tree of Life 1617:willow-flycatcher 1474:willow-flycatcher 1287:Taxon identifiers 1181:978-1-4000-4386-6 620: 619: 503:Castor canadensis 396:) is a federally 302:Empidonax alnorum 284:family native to 282:tyrant flycatcher 264:willow flycatcher 248: 247: 85: 1749: 1687: 1686: 1674: 1673: 1672: 1646: 1645: 1633: 1632: 1620: 1619: 1607: 1606: 1594: 1593: 1581: 1580: 1568: 1567: 1555: 1554: 1542: 1541: 1529: 1528: 1516: 1515: 1503: 1502: 1490: 1489: 1477: 1476: 1467: 1466: 1454: 1453: 1441: 1440: 1428: 1427: 1415: 1414: 1405: 1404: 1392: 1391: 1379: 1378: 1376:5BC4E0EFAB129B9D 1366: 1365: 1353: 1352: 1340: 1339: 1329: 1328: 1327: 1314: 1313: 1312: 1282: 1281: 1249: 1235: 1230: 1210: 1186: 1185: 1167: 1161: 1160: 1148: 1142: 1141: 1121: 1115: 1114: 1094: 1088: 1087: 1085: 1083: 1077: 1068: 1062: 1061: 1045: 1032: 1026: 1025: 1017: 1011: 1010: 1008: 1007: 989: 983: 982: 942: 936: 935: 899: 893: 892: 860: 854: 853: 851: 849: 831: 825: 824: 822: 820: 809: 803: 802: 792: 768: 759: 758: 756: 754: 749: 719: 543: 542: 438:Santa Ynez River 298:alder flycatcher 242: 236: 230: 221: 203: 183:E. traillii 100: 99: 79: 74: 73: 55: 54: 53: 51: 33: 21: 20: 1757: 1756: 1752: 1751: 1750: 1748: 1747: 1746: 1697: 1696: 1695: 1690: 1682: 1677: 1668: 1667: 1662: 1649: 1641: 1636: 1628: 1623: 1615: 1610: 1602: 1597: 1589: 1586:Observation.org 1584: 1576: 1571: 1563: 1558: 1550: 1545: 1537: 1532: 1524: 1519: 1511: 1506: 1498: 1493: 1485: 1480: 1472: 1470: 1462: 1457: 1449: 1444: 1436: 1431: 1423: 1418: 1410: 1408: 1400: 1395: 1387: 1382: 1374: 1369: 1361: 1356: 1348: 1343: 1337: 1332: 1323: 1322: 1317: 1308: 1307: 1302: 1289: 1238: 1221: 1201: 1198: 1192: 1190: 1189: 1182: 1168: 1164: 1149: 1145: 1122: 1118: 1095: 1091: 1081: 1079: 1075: 1069: 1065: 1058: 1033: 1029: 1018: 1014: 1005: 1003: 991: 990: 986: 943: 939: 900: 896: 869:Weed Technology 861: 857: 847: 845: 839:All About Birds 833: 832: 828: 818: 816: 811: 810: 806: 769: 762: 752: 750: 720: 716: 711: 683: 656:Central America 625: 537: 529:Rocky Mountains 513: 446:Lake Mead Delta 390: 371:E. t. brewsteri 355: 337: 333:E. t. brewsteri 322: 294: 244: 240: 238: 237: Migration 234: 232: 228: 212: 205: 199: 186: 94: 86: 75: 71: 64: 46: 43: 42: 41: 17: 16:Species of bird 12: 11: 5: 1755: 1745: 1744: 1739: 1734: 1729: 1724: 1719: 1714: 1709: 1692: 1691: 1689: 1688: 1675: 1659: 1657: 1651: 1650: 1648: 1647: 1634: 1621: 1608: 1595: 1582: 1569: 1556: 1543: 1530: 1517: 1504: 1491: 1478: 1468: 1455: 1442: 1429: 1416: 1406: 1393: 1380: 1367: 1354: 1341: 1330: 1315: 1299: 1297: 1291: 1290: 1279: 1278: 1268: 1256: 1250: 1236: 1219: 1211: 1197: 1196:External links 1194: 1188: 1187: 1180: 1162: 1143: 1116: 1105:(3): 514–525. 1089: 1063: 1056: 1027: 1012: 984: 957:(1): 146–154. 937: 894: 855: 826: 804: 783:(3): 608–618. 760: 713: 712: 710: 707: 682: 681:Food resources 679: 639:. They make a 624: 621: 618: 617: 614: 608: 607: 604: 598: 597: 594: 588: 587: 584: 578: 577: 574: 568: 567: 564: 558: 557: 554: 548: 547: 536: 533: 521:E. t. traillii 512: 510:E. t. traillii 507: 456:indicate that 442:Colorado River 430:Camp Pendleton 389: 383: 354: 349: 341:E.t. brewsteri 336: 330: 321: 318: 293: 290: 246: 245: 239: 233: 231: Breeding 227: 223: 222: 214: 213: 206: 195: 194: 188: 187: 180: 178: 174: 173: 166: 162: 161: 156: 152: 151: 146: 142: 141: 136: 132: 131: 126: 122: 121: 116: 112: 111: 106: 102: 101: 88: 87: 69: 66: 65: 60: 57: 56: 35: 34: 26: 25: 15: 9: 6: 4: 3: 2: 1754: 1743: 1740: 1738: 1735: 1733: 1730: 1728: 1725: 1723: 1720: 1718: 1715: 1713: 1710: 1708: 1705: 1704: 1702: 1685: 1680: 1676: 1671: 1665: 1661: 1660: 1658: 1656: 1652: 1644: 1639: 1635: 1631: 1626: 1622: 1618: 1613: 1609: 1605: 1600: 1596: 1592: 1587: 1583: 1579: 1574: 1570: 1566: 1561: 1557: 1553: 1548: 1544: 1540: 1535: 1531: 1527: 1522: 1518: 1514: 1509: 1505: 1501: 1496: 1492: 1488: 1483: 1479: 1475: 1469: 1465: 1460: 1456: 1452: 1447: 1443: 1439: 1434: 1430: 1426: 1421: 1417: 1413: 1407: 1403: 1398: 1394: 1390: 1385: 1381: 1377: 1372: 1368: 1364: 1359: 1355: 1351: 1346: 1342: 1335: 1331: 1326: 1320: 1316: 1311: 1305: 1301: 1300: 1298: 1296: 1292: 1288: 1283: 1276: 1272: 1269: 1267: 1263: 1262: 1257: 1254: 1251: 1247: 1246: 1241: 1237: 1234: 1228: 1224: 1220: 1218: 1217: 1212: 1208: 1204: 1200: 1199: 1193: 1183: 1177: 1173: 1166: 1158: 1154: 1147: 1139: 1135: 1131: 1127: 1120: 1112: 1108: 1104: 1100: 1093: 1074: 1067: 1059: 1057:0-679-45122-6 1053: 1049: 1044: 1043: 1037: 1031: 1023: 1016: 1002: 998: 996: 988: 980: 976: 972: 968: 964: 960: 956: 952: 948: 941: 933: 929: 925: 921: 917: 913: 909: 905: 898: 890: 886: 882: 878: 875:: 1542–1551. 874: 870: 866: 859: 844: 840: 836: 830: 814: 808: 800: 796: 791: 786: 782: 778: 774: 767: 765: 748: 743: 739: 735: 734: 729: 727: 718: 714: 706: 704: 700: 697: 695: 694:Lepidopterans 690: 689: 678: 676: 672: 667: 665: 664:South America 661: 657: 653: 649: 644: 642: 638: 634: 630: 615: 613: 610: 609: 605: 603: 600: 599: 595: 593: 590: 589: 585: 583: 580: 579: 575: 573: 570: 569: 565: 563: 560: 559: 555: 553: 550: 549: 544: 541: 532: 530: 526: 522: 518: 511: 506: 504: 500: 497: 493: 489: 485: 480: 477: 475: 470: 465: 463: 459: 455: 454:E. t. extimus 451: 447: 443: 439: 435: 431: 427: 423: 419: 414: 412: 408: 404: 399: 395: 394:E. t. extimus 387: 386:E. t. extimus 382: 380: 376: 375:E. t. adastus 372: 368: 364: 360: 359:E. t. adastus 353: 352:E. t. adastus 348: 346: 342: 334: 329: 326: 317: 315: 311: 307: 303: 299: 289: 287: 286:North America 283: 279: 275: 271: 270: 265: 257: 252: 224: 220: 215: 210: 204: 202: 196: 193: 192:Binomial name 189: 185: 184: 179: 176: 175: 172: 171: 167: 164: 163: 160: 157: 154: 153: 150: 149:Passeriformes 147: 144: 143: 140: 137: 134: 133: 130: 127: 124: 123: 120: 117: 114: 113: 110: 107: 104: 103: 98: 93: 89: 83: 78: 77:Least Concern 67: 63: 58: 52: 49: 40: 39:E. t. extimus 36: 32: 27: 22: 19: 1654: 1294: 1260: 1243: 1226: 1215: 1191: 1171: 1165: 1156: 1146: 1129: 1125: 1119: 1102: 1098: 1092: 1080:. 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Retrieved 737: 731: 725: 717: 692: 686: 684: 674: 670: 668: 645: 626: 538: 520: 515:The eastern 514: 509: 502: 495: 481: 472: 466: 453: 450:Topock Marsh 415: 393: 391: 385: 374: 370: 363:Modoc County 358: 356: 351: 340: 338: 332: 327: 323: 305: 301: 295: 268: 267: 263: 261: 200: 198: 182: 181: 169: 47: 38: 18: 1573:Neotropical 1547:NatureServe 1495:iNaturalist 1319:Wikispecies 1082:17 February 848:16 February 819:16 February 753:12 November 535:Description 492:NatureServe 422:Kern County 367:Inyo County 274:neotropical 1701:Categories 1670:Q109563361 1638:Xeno-canto 1275:Xeno-canto 1099:The Condor 1006:2023-06-23 910:(2): 331. 904:BioControl 777:The Condor 709:References 703:snakeflies 496:Imperiled. 462:Costa Rica 398:endangered 379:Oberholser 345:Oberholser 320:Subspecies 159:Tyrannidae 1712:Empidonax 1132:: 17–28. 629:deciduous 458:Guatemala 381:in 1932. 177:Species: 170:Empidonax 115:Kingdom: 109:Eukaryota 1684:11353191 1664:Wikidata 1552:2.103270 1539:22699848 1513:10763460 1389:22699848 1384:BirdLife 1304:Wikidata 1038:(2000). 979:56042221 932:16497604 889:35498749 799:59414997 699:mayflies 671:fitz-bew 641:cup nest 572:wingspan 517:nominate 310:binomial 292:Taxonomy 276:migrant 155:Family: 129:Chordata 125:Phylum: 119:Animalia 105:Domain: 82:IUCN 3.1 1604:1484436 1464:2482786 1371:Avibase 1310:Q903847 1227:Avibase 1126:The Auk 959:Bibcode 912:Bibcode 688:Diptera 660:Ecuador 648:migrate 633:willows 525:Audubon 448:and at 280:of the 211:, 1828) 209:Audubon 165:Genus: 145:Order: 135:Class: 80: ( 1578:wilfly 1565:164674 1526:178341 1471:GNAB: 1446:EURING 1438:wilfly 1412:wilfly 1358:ARKive 1338:wilfly 1178:  1054:  977:  930:  887:  797:  701:, and 652:Mexico 637:Canada 612:tarsus 602:culmen 562:weight 552:length 432:, the 241:  235:  229:  1630:67288 1591:73964 1508:IRMNG 1500:16611 1433:eBird 1425:39HWN 1409:BOW: 1076:(PDF) 975:S2CID 928:S2CID 885:S2CID 795:S2CID 428:, at 1679:GBIF 1612:ODNR 1599:OBIS 1560:NCBI 1534:IUCN 1521:ITIS 1459:GBIF 1451:9220 1402:9856 1397:BOLD 1207:USGS 1176:ISBN 1084:2012 1052:ISBN 850:2013 821:2013 755:2021 738:2016 675:whit 654:and 592:tail 582:wing 482:The 278:bird 262:The 256:USGS 139:Aves 50:call 1482:IBC 1420:CoL 1345:ADW 1334:ABA 1273:on 1264:at 1134:doi 1130:105 1107:doi 1103:110 1048:326 967:doi 920:doi 877:doi 785:doi 781:113 742:doi 662:in 650:to 460:to 444:at 1703:: 1681:: 1666:: 1640:: 1627:: 1614:: 1601:: 1588:: 1575:: 1562:: 1549:: 1536:: 1523:: 1510:: 1497:: 1484:: 1461:: 1448:: 1435:: 1422:: 1399:: 1386:: 1373:: 1360:: 1347:: 1336:: 1321:: 1306:: 1242:. 1225:. 1155:. 1128:. 1101:. 1050:. 999:. 973:. 965:. 955:16 953:. 949:. 926:. 918:. 908:57 906:. 883:. 873:18 871:. 867:. 841:. 837:. 793:. 779:. 775:. 763:^ 736:. 730:. 677:. 531:. 476:), 420:, 316:. 288:. 1277:. 1248:. 1229:. 1209:. 1184:. 1159:. 1140:. 1136:: 1113:. 1109:: 1086:. 1060:. 1009:. 993:" 981:. 969:: 961:: 934:. 922:: 914:: 891:. 879:: 852:. 823:. 801:. 787:: 757:. 744:: 728:" 724:" 696:, 501:( 300:( 266:( 207:( 84:)

Index


Empidonax traillii call
Conservation status
Least Concern
IUCN 3.1
Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Aves
Passeriformes
Tyrannidae
Empidonax
Binomial name
Audubon


USGS
neotropical
bird
tyrant flycatcher
North America
alder flycatcher
binomial
Thomas Stewart Traill
Oberholser
Modoc County
Inyo County
Oberholser

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