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Red-billed gull

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is an important part of the preparation for mating. Nests are well formed and may be constructed of seaweed, grasses, leaves and ice plants. Generally two to three eggs are laid, their colour ranges from brown to grey with light and dark brown spots all over. The bird generally lives up to 12 years,
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A national survey of breeding red-billed gulls carried out in 2014–2016 recorded 27,831 pairs nesting in New Zealand. The authors of the study based on the survey and published in 2018 said that the accuracy of previous estimates was questionable, but that the species nevertheless appeared to have
390:. Since European settlement its numbers have increased, especially around coastal towns and cities where it can scavenge from urban waste. It normally feeds on small fish, shell fish and worms (from pastures), and sometimes berries, lizards and insects. 47: 747: 350:
It is the smallest gull commonly seen in New Zealand. The population is estimated at 500,000. It was formerly considered a distinctive species, but looks similar to the
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with an all-red bill, red eye ring, red legs and feet, pale grey wings with black wingtips. The rest of the body and tail are white. There is virtually no
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declined nationally since the mid-1960s. The study also discussed the possible reasons for the decline and made a proposal for future monitoring.
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They nest from October to December in colonies on the coast, either on islands or rocky headlands, cliffs and beaches. The birds form
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Mills, J. A. (1994). Extra-pair copulations in the Red-Billed Gull: Females with high-quality, attentive males resist.
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Tasker, C. R., & Mills, J. A. (1981). A functional analysis of courtship feeding in the Red-billed Gull,
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Phylogenetic relationships within the Laridae (Charadriiformes: Aves) inferred from mitochondrial markers.
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islands. It was formerly considered a separate species but is now usually treated as a
858: 1627: 1137: 1050: 1008: 686: 1443: 1182: 1132: 1040: 1013: 998: 938: 669:. In del Hoyo, J.; Elliott, A.; Sargatal, J.; Christie, D.A.; de Juana, E. (eds.). 294: 263: 1430: 1581: 45: 1590: 1477: 1251: 1203: 1172: 1123: 1112: 1078: 963: 807: 351: 271: 255: 166: 1312: 1092: 359: 267: 1280: 1152: 1147: 1045: 988: 635: 407: 383: 355: 302: 297:, a somewhat similar-looking but unrelated species that is found in coastal 92: 1406: 678: 607: 258:, being found throughout the country and on outlying islands including the 863: 538:
Comparison of adult (left) and immature (right) red-billed gulls in flight
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Behaviourally, the red-billed gull is a typical gull. It is an aggressive
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Second-winter, first-winter, and adult birds (first three, from front)
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Foraging by oscillating its foot in sand at low tide to uncover prey.
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although individuals have also been found living up to 30 years.
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which endure across seasons, but there is a certain amount of
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Vega gull (or East Siberian gull / Mongolian gull)
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Burger, J.; Gochfeld, M.; Kirwan, G.M.; Garcia, E.F.J.
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Molecular Phylogenetics and Evolution 37(3):686-699
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visual difference between the male and female birds
833:Pons J.M., Hassanin, A., and Crochet P.A.(2005). 920:(† indicates a species confirmed to be extinct) 879: 746:Taylor, Graeme A.; Frost, Peter G.H. (2018). 8: 707:Barrie Heather & Hugh Robertson (2005). 709:The Field Guide to the Birds of New Zealand 1597:Chroicocephalus novaehollandiae scopulinus 1567:Chroicocephalus novaehollandiae scopulinus 1378: 1098:Great black-headed gull (or Pallas's gull) 886: 872: 864: 243:Chroicocephalus novaehollandiae scopulinus 199:Chroicocephalus novaehollandiae scopulinus 56: 43: 29: 20: 859:Red-billed Gull, New Zealand Birds Online 761:. Birds New Zealand: 1–13. Archived from 16:Subspecies of bird, native of New Zealand 671:Handbook of the Birds of the World Alive 599: 573: 426: 1199:Grey-headed gull (or grey-hooded gull) 788:A complete guide to Antarctic wildlife 330:The red-billed gull is a fairly small 1649:Taxa named by Johann Reinhold Forster 642:. International Ornithologists' Union 7: 1529:d970b4e7-be04-4d1d-851e-70df495f017e 801:Dangerfield, Emma (Dec 23, 2009). 608:"Larus novaehollandiae scopulinus" 14: 842:Larus Novaehollandiae scopulinus 555: 543: 531: 519: 504: 492: 480: 468: 456: 444: 432: 358:, and is now considered to be a 224:Larus novaehollandiae scopulinus 79: 634:; Donsker, David, eds. (2019). 276:Chroicocephalus novaehollandiae 1: 636:"Noddies, gulls, terns, auks" 1639:Endemic birds of New Zealand 790:. Alula Press, Oy, Finland. 711:(revised ed.). Viking. 640:World Bird List Version 9.2 550:Sea gull colony in Kaikōura 250:and once also known as the 1670: 1392:Chroicocephalus scopulinus 580:Published posthumously in 1357: 463:Red-billed gull in flight 221: 214: 195: 188: 76:Scientific classification 74: 54: 42: 37: 28: 23: 1061:Lesser black-backed gull 989:Kelp gull (or Cape gull) 285:name of this species is 1644:Birds described in 1844 984:Great black-backed gull 583:Descriptiones animalium 167:C. novaehollandiae 1367:Hybridisation in gulls 1290:Black-legged kittiwake 679:10.2173/bow.silgul2.01 398: 379: 1031:American herring gull 1026:European herring gull 786:Shirihai, H. (2002). 727:datazone.birdlife.org 665:Larus novaehollandiae 412:extra-pair copulation 396: 373: 181:C. n. scopulinus 1295:Red-legged kittiwake 994:Glaucous-winged gull 1349:Swallow-tailed gull 1224:Slender-billed gull 513:Picton, New Zealand 1108:Mediterranean gull 1036:Yellow-legged gull 1004:Yellow-footed gull 511:Juvenile bathing, 399: 380: 1621: 1620: 1537:Open Tree of Life 1384:Taxon identifiers 1375: 1374: 1362:Gull eggs as food 1219:Black-headed gull 1214:Brown-headed gull 1209:Black-billed gull 1194:Brown-hooded gull 1056:Slaty-backed gull 969:Short-billed gull 954:Black-tailed gull 673:. Lynx Edicions. 416:Courtship feeding 340:black-billed gull 254:, is a native of 246:), also known as 234: 233: 69: 48: 1661: 1614: 1613: 1601: 1600: 1599: 1586: 1585: 1584: 1558: 1557: 1545: 1544: 1532: 1531: 1522: 1521: 1512: 1511: 1499: 1498: 1486: 1485: 1473: 1472: 1460: 1459: 1447: 1446: 1434: 1433: 1424: 1423: 1421:A66A66350A2687A9 1411: 1410: 1409: 1379: 1229:Bonaparte's gull 974:Ring-billed gull 888: 881: 874: 865: 819: 818: 816: 815: 798: 792: 791: 783: 777: 776: 774: 773: 767: 752: 743: 737: 736: 734: 733: 719: 713: 712: 704: 698: 697: 695: 693: 658: 652: 651: 649: 647: 628: 622: 621: 619: 618: 604: 587: 578: 559: 547: 535: 523: 508: 496: 484: 472: 460: 451:Adult with chick 448: 436: 307:Falkland Islands 228:Larus scopulinus 201: 84: 83: 63: 60: 59: 50: 49: 33: 24:Red-billed gull 21: 1669: 1668: 1664: 1663: 1662: 1660: 1659: 1658: 1634:Chroicocephalus 1624: 1623: 1622: 1617: 1609: 1604: 1595: 1594: 1589: 1580: 1579: 1574: 1561: 1553: 1548: 1540: 1535: 1527: 1525: 1519:red-billed-gull 1517: 1515: 1507: 1502: 1494: 1489: 1481: 1476: 1468: 1463: 1455: 1450: 1442: 1437: 1429: 1427: 1419: 1414: 1405: 1404: 1399: 1386: 1376: 1371: 1353: 1335: 1317: 1299: 1274: 1256: 1238: 1234:Saunders's gull 1189:Hartlaub's gull 1178:Red-billed gull 1164:Chroicocephalus 1157: 1143:Franklin's gull 1117: 1088:White-eyed gull 1072: 979:California gull 959:Heermann's gull 923: 902: 892: 855: 823: 822: 813: 811: 800: 799: 795: 785: 784: 780: 771: 769: 765: 750: 745: 744: 740: 731: 729: 721: 720: 716: 706: 705: 701: 691: 689: 660: 659: 655: 645: 643: 630: 629: 625: 616: 614: 606: 605: 601: 596: 591: 590: 579: 575: 570: 563: 560: 551: 548: 539: 536: 527: 524: 515: 509: 500: 497: 488: 485: 476: 473: 464: 461: 452: 449: 440: 437: 428:Red-billed gull 425: 404: 368: 348: 328: 260:Chatham Islands 238:red-billed gull 210: 203: 197: 184: 170: 154:Chroicocephalus 133:Charadriiformes 78: 70: 61: 57: 44: 17: 12: 11: 5: 1667: 1665: 1657: 1656: 1651: 1646: 1641: 1636: 1626: 1625: 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853:External links 851: 850: 849: 838: 831: 828:Behaviour, 128 821: 820: 793: 778: 738: 714: 699: 663:"Silver Gull ( 653: 623: 598: 597: 595: 592: 589: 588: 572: 571: 569: 566: 565: 564: 561: 554: 552: 549: 542: 540: 537: 530: 528: 525: 518: 516: 510: 503: 501: 498: 491: 489: 486: 479: 477: 474: 467: 465: 462: 455: 453: 450: 443: 441: 438: 431: 429: 424: 421: 403: 400: 388:kleptoparasite 367: 364: 347: 344: 327: 324: 299:southern Chile 232: 231: 219: 218: 212: 211: 204: 193: 192: 190:Trinomial name 186: 185: 178: 176: 172: 171: 164: 162: 158: 157: 150: 146: 145: 140: 136: 135: 130: 126: 125: 120: 116: 115: 110: 106: 105: 100: 96: 95: 90: 86: 85: 72: 71: 55: 52: 51: 40: 39: 35: 34: 26: 25: 15: 13: 10: 9: 6: 4: 3: 2: 1666: 1655: 1652: 1650: 1647: 1645: 1642: 1640: 1637: 1635: 1632: 1631: 1629: 1612: 1607: 1603: 1598: 1592: 1588: 1583: 1577: 1573: 1572: 1570: 1568: 1564: 1556: 1551: 1547: 1543: 1538: 1534: 1530: 1524: 1520: 1514: 1510: 1505: 1501: 1497: 1492: 1488: 1484: 1479: 1475: 1471: 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1010: 1009:Glaucous gull 1007: 1005: 1002: 1000: 997: 995: 992: 990: 987: 985: 982: 980: 977: 975: 972: 970: 967: 965: 962: 960: 957: 955: 952: 950: 947: 945: 942: 940: 937: 936: 934: 932: 931: 926: 919: 918: 914: 913: 911: 909: 905: 900: 896: 889: 884: 882: 877: 875: 870: 869: 866: 860: 857: 856: 852: 847: 846:Behaviour, 77 843: 839: 836: 832: 829: 825: 824: 810: 809: 804: 797: 794: 789: 782: 779: 768:on 2019-02-01 764: 760: 756: 749: 742: 739: 728: 724: 718: 715: 710: 703: 700: 688: 684: 680: 676: 672: 668: 666: 657: 654: 641: 637: 633: 627: 624: 613: 609: 603: 600: 593: 586: 584: 577: 574: 567: 558: 553: 546: 541: 534: 529: 522: 517: 514: 507: 502: 495: 490: 483: 478: 471: 466: 459: 454: 447: 442: 435: 430: 427: 422: 420: 417: 413: 409: 401: 395: 391: 389: 385: 377: 372: 365: 363: 361: 357: 353: 345: 343: 341: 337: 333: 325: 323: 319: 317: 316: 312: 308: 304: 300: 296: 292: 288: 284: 279: 277: 273: 269: 265: 261: 257: 253: 252:mackerel gull 249: 245: 244: 239: 230: 229: 225: 220: 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Retrieved 612:nztcs.org.nz 611: 602: 582: 576: 405: 381: 349: 346:Distribution 329: 320: 313: 295:dolphin gull 290: 286: 280: 275: 264:subantarctic 251: 247: 242: 241: 237: 235: 227: 223: 222: 198: 196: 180: 179: 175:Subspecies: 165: 153: 18: 1591:Wikispecies 1478:iNaturalist 1270:Ross's gull 1252:Little gull 1204:Andean gull 1173:Silver gull 1124:Leucophaeus 1113:Relict gull 1079:Ichthyaetus 964:Common gull 808:Stuff.co.nz 632:Gill, Frank 352:silver gull 326:Description 272:silver gull 256:New Zealand 1654:Subspecies 1628:Categories 1313:Ivory gull 1093:Sooty gull 901:: Laridae) 814:2015-06-21 772:2019-03-22 732:2019-03-22 617:2022-09-14 594:References 562:2021 photo 439:Upper body 408:pair bonds 402:Life cycle 360:subspecies 268:subspecies 1582:Q27608860 1305:Pagophila 1153:Grey gull 1148:Lava gull 687:241433727 487:Crouching 384:scavenger 366:Behaviour 356:Australia 354:found in 303:Argentina 287:tarāpunga 248:tarāpunga 161:Species: 99:Kingdom: 93:Eukaryota 62:Declining 1576:Wikidata 1401:Wikidata 1341:Creagrus 830:, 41–64. 755:Notornis 692:21 April 585:, p. 106 305:and the 216:Synonyms 209:, 1844) 139:Family: 113:Chordata 109:Phylum: 103:Animalia 89:Domain: 1611:8982594 1555:1416107 1470:6065819 1457:rebgul1 1431:rebgul1 1416:Avibase 917:Species 848:, 222ff 646:24 June 475:Landing 423:Gallery 378:berries 376:taupata 374:Eating 270:of the 207:Forster 149:Genus: 143:Laridae 129:Order: 119:Class: 64: ( 1542:416082 1526:NZOR: 1516:NZBO: 1509:126716 1496:824043 1483:144506 1407:Q76472 899:family 685:  291:akiaki 66:NZ TCS 38:Adult 1550:WoRMS 1452:eBird 1444:5YGFM 1428:BOW: 1281:Rissa 930:Larus 908:Genus 895:Gulls 766:(PDF) 751:(PDF) 683:S2CID 568:Notes 315:Larus 311:genus 283:Māori 1606:GBIF 1504:NCBI 1491:ITIS 1465:GBIF 1323:Xema 694:2017 648:2019 526:Eggs 386:and 332:gull 281:The 262:and 236:The 123:Aves 1439:CoL 844:. 675:doi 289:or 278:). 1630:: 1608:: 1593:: 1578:: 1552:: 1539:: 1506:: 1493:: 1480:: 1467:: 1454:: 1441:: 1418:: 1403:: 805:. 759:65 757:. 753:. 725:. 681:. 667:)" 638:. 610:. 414:. 362:. 318:. 301:, 226:, 1185:† 897:( 887:e 880:t 873:v 817:. 775:. 735:. 696:. 677:: 650:. 620:. 274:( 240:( 205:( 68:)

Index


NZ TCS
Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Aves
Charadriiformes
Laridae
Chroicocephalus
C. novaehollandiae
Trinomial name
Forster
Synonyms
New Zealand
Chatham Islands
subantarctic
subspecies
silver gull
Māori
dolphin gull
southern Chile
Argentina
Falkland Islands
genus
Larus
gull
visual difference between the male and female birds
black-billed gull

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