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LeConte's thrasher

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eggs are large-sized and bluish green that may either contain various degrees of brown spotting or no markings. The eggs are generally laid once a day and incubation begins once the last egg is laid, and lasts from 14 to 20 days. The male generally provides the food for the female, as well as food for the young during the brooding stages. The female is more likely to incubate during at night, however. If the nest is destroyed or preyed upon, a new one is generally built, as they can have up to three broods during the reproductive season.
510:. The song starts softly, then increases in volume, and has a more measured delivery than that of the crissal thrasher. The song bouts have been compared to curve-billed thrashers, but are higher pitched and marked by clear intervals. The song is generally uttered from an exposed perch, and is generally heard either in the morning or in the evening, though it has been heard at night. Females also sing on occasion, in a manner similar to juvenile male LeConte's. Calls include a short whistle note 86: 488: 42: 61: 1292: 1280: 497:
This thrasher is a highly terrestrial bird, and is only seen flying when nest building or feeding its young. It runs at a surprisingly fast pace, even at speeds to outpace a trotting horse. When it does run, its tail is generally held upward, exposing its buffy crissum. LeConte's thrasher is a ground
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of grasses. Off-road vehicle use is a minor factor, while military operations conducted in the region have been considered, but not properly researched. However, there are apparent areas of suitable acreage for the thrasher that have not been utilized, and its population in undisturbed regions appear
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possess a sandy pale-gray color. The primaries and secondaries are grayish brown. The rectrices are of a darker gray brown that contrasts with the plumage. Lores and ear-coverts are a mottled gray brown. The throat is an off-whitish color of a darker stripe. The chest and belly is puffy gray, and the
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The singing season typically begins in mid-autumn and peaks around late December and early January, when nest building begins. The nests are generally of a bulky build, with outer layer of twigs, a middle layer of twigs, grasses, and rootlets, and an inner layer of insulating materials such as fuzzy
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The egg dates generally range from February to the end of May in California, and in the Sonoran region from December to April, though dates have been listed as early as late January and as late as the latter part of June. The clutch size ranges from 2 to 5 eggs, but the number is generally 3–4. The
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such as beetles, scorpions, spiders, grasshoppers, butterflies, moth larvae, and small lizards and snakes. Eggs are also part of its diet, including those of its own species. Plant consumption includes seeds and berries. The LeConte's conserve water as an adaptation to their arid habitat and obtain
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have been used when the general distance of nests off the ground are usually only half as low. Both sexes take part in nest building, although the participation of the male varies. Nest fidelity is generally observed with the species until one of the mates die. The territories of the nesting pairs
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The young are fed by both parents during the fledgling period, which can span from 12 to 20 days, and can be continued to be fed after for 15 to 18 days afterward, especially if the female is brooding the next clutch. At around 30 days old, the fledglings disperse, and may form small groups.
245:, where it blends in with the sandy soils. LeConte's thrashers are nonmigratory birds that reside in the same territory annually. Although the species has been decreasing in certain areas of its range, in particular California, it still is abundant enough to not be considered for 544:
plant seeds, leaves or flowers. Feathers and artificial material have been used as well, but these instances are rare. Dense and thorny shrubs such as the saltbush are preferred sites, although artificial sites such as abandoned vehicles and heights as high as 2.4 m with
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These birds are terrestrial and only fly occasionally. Both sexes are heavily involved in the nest building, incubating, and brooding process, though each alternates with primary responsibility of the tasks. LeConte's thrashers frequently compete with species such as the
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to be more stable. Although the thrasher has relatively small numbers on a worldwide scale for a passerine, and has been listed as a species of concern in the state of California, its large range overall justifies its status as least concern.
585:) while simultaneously disappearing into a bush head first in a slow motion. Their territories are most actively defended from early December to early February. Potential competitors for food and nesting sites include the 403:
vent and uppertail coverts are of a warmer tint in contrast to the palish chest and belly. The underwing is both gray and buff, with a brown-chestnut iris, a black-sickle shaped bill, and legs that are nearly black.
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within the species. Their wings are typical of birds that are sedentary, as they are short and rounded. There are noted differences among the subspecies. The crown, back, shoulders, and rump of
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forager, and will dig small pits in leaf litter or soil to find its prey. It is a monogamous species, and generally seen in pairs, and juveniles may form small parties from two to eight birds.
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has a darker chest and underparts and a shorter tail. In its juvenile stages, the thrasher is darker brown, and its feathers looser and fluffy in appearance, especially on the vent.
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Lovette, I. J.; Arbogast, B. S.; Curry, R. L.; Zink, R. M.; Botero, C. A.; Sullivan, J. P.; Talaba, A. L.; Harris, R. B.; Rubenstein, D. R.; Ricklefs, R. E.; Bermingham, E. (2012).
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The song is a large, prolonged outpouring of warbled phrases that can be repeated two or several times and can be heard from considerable distances, which is typical of the genus
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and the fledgling dispersals. Males may give a visual display to intruding males by employing a head down position, showing off their crissum (the undertail
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and central and southern Arizona, and is a resident species throughout its range. It resides in some of the harshest climates in its region, including the
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thrashers, in particular the sickle-shaped bill, longer legs and smaller wings indicated its adaption to a preference to running and digging for food.
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what they need from their food. While they generally do not have to drink, there has been one recorded instance of such an event.
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as separate species, and treated as a separate species by other authors. and a name of Vizcaino thrasher if it becomes official.
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LeConte's thrasher weighs from 55 to 75 g (1.9 to 2.6 oz) and are 24.5–29 cm (9.6–11.4 in), and there is no
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These birds defend their territory year-round, but males are generally less territorial in the summer months during
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structure of the LeConte's is consistent with both its geographic distribution and genetics, with the
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The thrasher has had its population decline in certain regions of its range, notably the
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may be adjacent to one another due to food sources, although conflicts are rarely had.
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This bird ranges from California as far west as the San Joaquin Valley through southern
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regions. Major reasons for its decline include urbanization, cultivation of land for
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8. Le Conte's Thrasher (San Joaquin Valley Population) (Toxostoma lecontei lecontei)
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Some of the predators of the eggs, young, and adults of this species include
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group. The similarities with these three species contrasted with other
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Zink, Robert M.; Blackwell, Rachelle C.; Rojas-Soto, Octavio (1999).
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The two closest living relatives of LeConte's thrasher, the
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Birds of the Salton Sea: Status, Biogeography, and Ecology
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McCaskie, Guy; Patten, Michael; Unitt, Philip (2003).
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American Association for the Advancement of Science
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A proposed race 205: 59: 40: 31: 1089: 1087: 1085: 1083: 1081: 1079: 1077: 1075: 1073: 1071: 1069: 1067: 1065: 831: 829: 783:. Yale University Press. pp. 238–9. 701: 1651:Fauna of the Lower Colorado River Valley 1063: 1061: 1059: 1057: 1055: 1053: 1051: 1049: 1047: 1045: 627:in a least one instance, but not by the 667: 281:who eventually became president of the 1104:. Bureau of Land Management California 1676:Taxa named by George Newbold Lawrence 934:Molecular Phylogenetics and Evolution 530:The diet is omnivorous, and includes 303:) to northwestern Mexico (north east 7: 335:still is treated as a subspecies of 1626:IUCN Red List least concern species 1224:Endangered Species Recovery Program 689:IUCN Red List of Threatened Species 812:"Le Conte's or Vizcaino Thrasher)" 273:LeConte's thrasher is named after 25: 321:; west coast of Baja California. 1290: 1278: 84: 845:American Ornithological Society 678:BirdLife International (2018). 229:) is a pale bird found in the 1: 780:Wrens, Dippers, and Thrashers 329:American Ornithologists Union 1646:Fauna of the Colorado Desert 285:. There are two subspecies: 1661:Fauna of the Sonoran Desert 1133:Arizona Breeding Bird Atlas 954:10.1016/j.ympev.2011.07.009 616:They are rarely victims of 1692: 1251:"Bird Songs of California" 231:southwestern United States 836:Tweit, Robert C. (2015). 696:: e.T22711121A131112198. 569:Predators and competitors 327:has been proposed by the 275:Dr. John Lawrence LeConte 214:LeConte's thrasher range 213: 204: 186: 179: 81:Scientific classification 79: 57: 48: 39: 34: 1656:Fauna of the Yuma Desert 237:. It prefers to live in 18:Le Conte's thrasher 1671:Birds described in 1851 638:, greater roadrunners, 1095:"LeConte's Thrasher - 777:Brewer, David (2001). 603:black-throated sparrow 557: 494: 391: 555: 490: 389: 357:allopatric speciation 1287:at Wikimedia Commons 629:brown-headed cowbird 587:northern mockingbird 299:, and south central 255:northern mockingbird 946:2012MolPE..63..219L 453:California thrasher 364:California thrasher 51:Conservation status 35:LeConte's thrasher 1603:Toxostoma-lecontei 1486:le-contes-thrasher 1372:Toxostoma_lecontei 1347:Toxostoma lecontei 1317:Toxostoma lecontei 1297:Toxostoma lecontei 1285:Toxostoma lecontei 1097:Toxostoma lecontei 682:Toxostoma lecontei 640:antelope squirrels 611:greater roadrunner 558: 495: 492:Toxostoma lecontei 468:San Joaquin Valley 429:San Joaquin Valley 392: 341:T.c. macmillanorum 263:greater roadrunner 226:Toxostoma lecontei 221:LeConte's thrasher 190:Toxostoma lecontei 1613: 1612: 1585:Open Tree of Life 1309:Taxon identifiers 1283:Media related to 790:978-0-300-09059-8 595:loggerhead shrike 419:and southwestern 411:Range and habitat 396:sexual dimorphism 259:loggerhead shrike 241:with very little 233:and northwestern 218: 217: 74: 16:(Redirected from 1683: 1606: 1605: 1593: 1592: 1580: 1579: 1567: 1566: 1554: 1553: 1541: 1540: 1528: 1527: 1515: 1514: 1502: 1501: 1489: 1488: 1479: 1478: 1466: 1465: 1453: 1452: 1440: 1439: 1427: 1426: 1414: 1413: 1401: 1400: 1388: 1387: 1385:E34694637A8D655E 1375: 1374: 1362: 1361: 1351: 1350: 1349: 1336: 1335: 1334: 1304: 1295:Data related to 1294: 1282: 1266: 1265: 1263: 1261: 1255: 1247: 1236: 1235: 1233: 1231: 1212: 1175: 1174: 1154: 1148: 1147: 1127: 1114: 1113: 1111: 1109: 1103: 1091: 1040: 1039: 1032: 1026: 1025: 999: 986: 980: 979: 977: 976: 970: 964:. Archived from 931: 922: 916: 915: 913: 911: 905: 897: 891: 890: 864: 855: 849: 848: 842: 833: 824: 823: 821: 819: 808: 795: 794: 774: 715: 714: 712: 710: 705: 675: 581:surrounding the 476:invasive species 368:crissal thrasher 319:Rosalia thrasher 317:(Anthony, 1897) 209: 192: 172:T. lecontei 89: 88: 68: 63: 62: 44: 32: 21: 1691: 1690: 1686: 1685: 1684: 1682: 1681: 1680: 1666:Birds of Mexico 1616: 1615: 1614: 1609: 1601: 1596: 1588: 1583: 1575: 1570: 1562: 1557: 1549: 1544: 1536: 1531: 1523: 1518: 1510: 1505: 1497: 1492: 1484: 1482: 1474: 1469: 1461: 1456: 1448: 1443: 1435: 1430: 1422: 1417: 1409: 1404: 1396: 1391: 1383: 1378: 1370: 1365: 1359: 1354: 1345: 1344: 1339: 1330: 1329: 1324: 1311: 1275: 1270: 1269: 1259: 1257: 1253: 1249: 1248: 1239: 1229: 1227: 1214: 1213: 1178: 1171: 1156: 1155: 1151: 1144: 1129: 1128: 1117: 1107: 1105: 1101: 1093: 1092: 1043: 1034: 1033: 1029: 1014:10.2307/4089682 997: 988: 987: 983: 974: 972: 968: 929: 924: 923: 919: 909: 907: 903: 899: 898: 894: 879:10.2307/1370231 862: 857: 856: 852: 840: 835: 834: 827: 817: 815: 810: 809: 798: 791: 776: 775: 718: 708: 706: 677: 676: 669: 664: 625:bronzed cowbird 571: 541: 528: 504: 485: 413: 384: 353:Vizcaíno Desert 349:phylogeographic 305:Baja California 271: 200: 194: 188: 175: 83: 75: 64: 60: 53: 28: 27:Species of bird 23: 22: 15: 12: 11: 5: 1689: 1687: 1679: 1678: 1673: 1668: 1663: 1658: 1653: 1648: 1643: 1638: 1633: 1628: 1618: 1617: 1611: 1610: 1608: 1607: 1594: 1581: 1568: 1555: 1542: 1529: 1516: 1503: 1490: 1480: 1467: 1454: 1441: 1428: 1415: 1402: 1389: 1376: 1363: 1352: 1337: 1321: 1319: 1313: 1312: 1307: 1301: 1300: 1299:at Wikispecies 1288: 1274: 1273:External links 1271: 1268: 1267: 1237: 1176: 1169: 1149: 1143:978-0826333797 1142: 1115: 1041: 1027: 1008:(4): 1021–38. 981: 940:(2): 219–229. 917: 892: 850: 825: 796: 789: 716: 666: 665: 663: 660: 654:, and various 570: 567: 540: 537: 527: 524: 503: 500: 484: 481: 425:Sonoran Desert 412: 409: 405:T.l. arenicola 383: 380: 370:, form as the 333:T.l. arenicola 325:T.l. arenicola 315:T.l. arenicola 307:and northwest 270: 267: 216: 215: 211: 210: 202: 201: 195: 184: 183: 177: 176: 169: 167: 163: 162: 155: 151: 150: 145: 141: 140: 135: 131: 130: 125: 121: 120: 115: 111: 110: 105: 101: 100: 95: 91: 90: 77: 76: 58: 55: 54: 49: 46: 45: 37: 36: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 1688: 1677: 1674: 1672: 1669: 1667: 1664: 1662: 1659: 1657: 1654: 1652: 1649: 1647: 1644: 1642: 1639: 1637: 1634: 1632: 1629: 1627: 1624: 1623: 1621: 1604: 1599: 1595: 1591: 1586: 1582: 1578: 1573: 1569: 1565: 1560: 1556: 1552: 1547: 1543: 1539: 1534: 1530: 1526: 1521: 1517: 1513: 1508: 1504: 1500: 1495: 1491: 1487: 1481: 1477: 1472: 1468: 1464: 1459: 1455: 1451: 1446: 1442: 1438: 1433: 1429: 1425: 1420: 1416: 1412: 1407: 1403: 1399: 1394: 1390: 1386: 1381: 1377: 1373: 1368: 1364: 1357: 1353: 1348: 1342: 1338: 1333: 1327: 1323: 1322: 1320: 1318: 1314: 1310: 1305: 1298: 1293: 1289: 1286: 1281: 1277: 1276: 1272: 1252: 1246: 1244: 1242: 1238: 1225: 1221: 1219: 1211: 1209: 1207: 1205: 1203: 1201: 1199: 1197: 1195: 1193: 1191: 1189: 1187: 1185: 1183: 1181: 1177: 1172: 1170:9780520235939 1166: 1162: 1161: 1153: 1150: 1145: 1139: 1135: 1134: 1126: 1124: 1122: 1120: 1116: 1100: 1098: 1090: 1088: 1086: 1084: 1082: 1080: 1078: 1076: 1074: 1072: 1070: 1068: 1066: 1064: 1062: 1060: 1058: 1056: 1054: 1052: 1050: 1048: 1046: 1042: 1037: 1031: 1028: 1023: 1019: 1015: 1011: 1007: 1003: 996: 994: 985: 982: 971:on 2012-07-12 967: 963: 959: 955: 951: 947: 943: 939: 935: 928: 921: 918: 902: 896: 893: 888: 884: 880: 876: 873:(1): 132–38. 872: 868: 861: 854: 851: 846: 839: 832: 830: 826: 813: 807: 805: 803: 801: 797: 792: 786: 782: 781: 773: 771: 769: 767: 765: 763: 761: 759: 757: 755: 753: 751: 749: 747: 745: 743: 741: 739: 737: 735: 733: 731: 729: 727: 725: 723: 721: 717: 704: 699: 695: 691: 690: 685: 683: 674: 672: 668: 661: 659: 657: 653: 649: 645: 644:domestic cats 641: 637: 636:birds of prey 632: 630: 626: 622: 619: 614: 612: 608: 604: 600: 596: 592: 591:sage thrasher 588: 584: 580: 576: 568: 566: 562: 554: 550: 547: 538: 536: 533: 525: 523: 521: 517: 513: 509: 501: 499: 493: 489: 482: 480: 477: 473: 469: 465: 461: 456: 454: 450: 446: 442: 438: 434: 430: 426: 422: 418: 410: 408: 406: 401: 400:T.c. lecontei 397: 388: 381: 379: 377: 373: 369: 365: 360: 358: 354: 350: 346: 345:T.l. lecontei 342: 338: 334: 330: 326: 322: 320: 316: 312: 310: 306: 302: 298: 294: 290: 289:T.l. lecontei 286: 284: 280: 276: 268: 266: 264: 260: 256: 250: 248: 244: 240: 236: 232: 228: 227: 222: 212: 208: 203: 198: 193: 191: 185: 182: 181:Binomial name 178: 174: 173: 168: 165: 164: 161: 160: 156: 153: 152: 149: 146: 143: 142: 139: 138:Passeriformes 136: 133: 132: 129: 126: 123: 122: 119: 116: 113: 112: 109: 106: 103: 102: 99: 96: 93: 92: 87: 82: 78: 72: 67: 66:Least Concern 56: 52: 47: 43: 38: 33: 30: 19: 1316: 1258:. 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Avibase 658:species. 512:suuuweeee 508:Toxostoma 472:livestock 460:Coachella 376:Toxostoma 166:Species: 159:Toxostoma 104:Kingdom: 98:Eukaryota 1551:2.103738 1538:22711121 1512:11164895 1398:22711121 1393:BirdLife 1332:Q3181161 1326:Wikidata 962:21867766 847:: 32–34. 818:14 March 539:Breeding 483:Behavior 466:and the 464:Imperial 437:creosote 433:saltbush 427:and the 372:lecontei 366:and the 337:lecontei 269:Taxonomy 249:status. 197:Lawrence 144:Family: 118:Chordata 114:Phylum: 108:Animalia 94:Domain: 71:IUCN 3.1 1476:5231703 1380:Avibase 1022:4089682 1002:The Auk 942:Bibcode 887:1370231 652:coyotes 618:cowbird 579:coverts 575:molting 520:pooh-ip 516:hew-eep 301:Arizona 239:deserts 154:Genus: 148:Mimidae 134:Order: 124:Class: 69: ( 1590:410208 1577:lecthr 1525:178645 1483:GNAB: 1458:EURING 1450:lecthr 1424:lecthr 1411:117018 1360:lecoth 1167:  1140:  1020:  960:  885:  787:  583:cloaca 443:, and 417:Nevada 309:Sonora 235:Mexico 199:, 1851 1564:55419 1507:IRMNG 1499:14892 1463:10750 1445:eBird 1437:57MNW 1254:(PDF) 1102:(PDF) 1018:JSTOR 998:(PDF) 969:(PDF) 930:(PDF) 904:(PDF) 883:JSTOR 863:(PDF) 841:(PDF) 656:snake 277:, an 1559:NCBI 1533:IUCN 1520:ITIS 1471:GBIF 1406:BOLD 1262:2015 1232:2015 1165:ISBN 1138:ISBN 1110:2015 958:PMID 912:2015 820:2015 785:ISBN 711:2021 694:2018 648:dogs 526:Diet 502:Song 421:Utah 297:Utah 261:and 128:Aves 1432:CoL 1419:BOW 1367:ADW 1356:ABA 1010:doi 1006:116 950:doi 875:doi 698:doi 518:or 311:). 1622:: 1600:: 1587:: 1574:: 1561:: 1548:: 1535:: 1522:: 1509:: 1496:: 1473:: 1460:: 1447:: 1434:: 1421:: 1408:: 1395:: 1382:: 1369:: 1358:: 1343:: 1328:: 1240:^ 1222:. 1179:^ 1118:^ 1044:^ 1016:. 1004:. 1000:. 995:)" 956:. 948:. 938:63 936:. 932:. 881:. 871:99 869:. 865:. 843:. 828:^ 799:^ 719:^ 692:. 686:. 670:^ 650:, 646:, 642:, 605:, 601:, 597:, 593:, 589:, 514:, 462:, 439:, 435:, 359:. 257:, 1264:. 1234:. 1220:" 1216:" 1173:. 1146:. 1112:. 1099:" 1038:. 1024:. 1012:: 978:. 952:: 944:: 914:. 889:. 877:: 822:. 793:. 713:. 700:: 684:" 680:" 223:( 73:) 20:)

Index

Le Conte's thrasher

Conservation status
Least Concern
IUCN 3.1
Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Aves
Passeriformes
Mimidae
Toxostoma
Binomial name
Lawrence

southwestern United States
Mexico
deserts
vegetation
vulnerable
northern mockingbird
loggerhead shrike
greater roadrunner
Dr. John Lawrence LeConte
entomologist
American Association for the Advancement of Science
California
Utah

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