to Advanced Search and Report, Toxostoma lecontei macmillanorum A. R. Phillips, 1966 – San Joaquin LeConte's thrasher, "Zoonomen - Zoological Nomenclature Resource" maintained by Alan P. Peterson at, Endangered and Threatened Wildlife and Plants; Animal Candidate Review for Listing as Endangered or Threatened Species, US ESA: Potential candidate without sufficient data on vulnerability, as published in Federal Register Volume 59, Number 219, Pages 58982 - 59028, November 15, 1994. Avibase taxonomic concepts v. 01 (August 2013) (v.1) There are two subspecies: eBird version 1.54 (v.1) Clements 5th edition (incl. It prefers to live in deserts with very little vegetation, where it blends in with the sandy soils. [2] The crown, back, shoulders, and rump of T.c. 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 vulnerable status. Genus:   Toxostoma, Reference:   Ann.Lyc.Nat.Hist.N.Y. Breeding in Middle America, North America: sw USA, nw Mexico; can be seen in 2 countries. There are more than 20,000 regional checklists in Avibase, offered in 9 different taxonomies, including synonyms more than 175 languages. The Le Conte's Thrasher ( Toxostoma lecontei) is a pale bird found in the Southwestern United States and northwestern Mexico. [10][13], 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. National Science Foundation 2004 revisions) (v.1) The rectrices are of a darker gray brown that contrasts with the plumage. none James Lee Peters (original) (v.1) The Animal Diversity Web is an educational resource written largely by and for college students. Toxostoma lecontei macmillanorum A. R. Phillips, 1966Taxonomic Serial No. The palest of all thrashers, it … You must be logged in to view your sighting details. [2][10] 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 smoke trees have been used when the general distance of nests off the ground are usually only half as low. Clements 6th edition (v.1) Accessed at 2000 revisions) (v.1) Comme tous les oiseaux du genre Toxostoma lorsqu'ils se sentent menacés, le Moqueur de Le Conte préfère se faufiler dans les buissons et ne s'envole qu'en dernier recours[1]. "Zoonomen - Zoological Nomenclature Resource" maintained by Alan P. Peterson at While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. [2] The range of altitude spans as low as 80 m below sea level (in Death Valley) to as high as 1,600 m, although 500 m above sea level is the average. [3] and a name of Vizcaino thrasher if it becomes official. sw USA.) Females also sing on occasion, in a manner similar to juvenile male LeConte's. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. [2][13] At around 30 days old, the fledglings disperse, and may form small groups. [10][11] The eggs are large-sized and bluish green that may either contain various degrees of brown spotting or no markings. The throat is an off-whitish color of a darker stripe. [2][3][4], T.l. [3] A proposed race T.c. nw Mexico.) James Lee Peters (2nd edition) (v.1) [10] The female is more likely to incubate during at night, however. 1852. The San Joaquin Valley population apparently is isolated from other populations of Le Conte's thrasher and is resident; individuals do not migrate (Grinnell 1933 b , … : 920581. an order within an order? Handbook of the Birds of the World and Birdlife (Dec 2017) (v.1) Clements 5th edition (incl. It prefers to live in deserts with very little vegetation, where it blends in with the sandy soils. LeConte's thrasher is named after Dr. John Lawrence LeConte, an entomologist who eventually became president of the American Association for the Advancement of Science. [10] However, there are apparent areas of suitable acreage for the thrasher that have not been utilized, and its population in undisturbed regions appear to be more stable. [10][13] Eggs are also part of its diet, including those of its own species. [2][11] The typical desert habitat consists of dunes, alluvial fans, and flat to gently rolling hills with shallow washes with sparse vegetation. Please see our brief essay. [2] There are two subspecies: T.l. MyAvibase allows you to create and manage your own lifelists, and produce useful reports to help you plan your next birding excursion. eBird version 2016 (v.1) Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. LeConte's thrasher has been recorded being victimized by the bronzed cowbird in a least one instance, but not by the brown-headed cowbird. [2] Their territories are most actively defended from early December to early February. Toxostoma lecontei Lawrence, 1851 Type locality: junction of Gila and Colorado rivers, California, USA. Handbook of the Birds of the World and Birdlife (Dec 2018) (v.1) eBird version 1.50 (v.1) [2] When it does run, its tail is generally held upward, exposing its buffy crissum. Handbook of the Birds of the World Alive (03/07/2017) (v.1) However, when 11 brown-headed cowbird eggs were placed in the thrasher's nest in an experiment, they were accepted. 2003 revisions) (v.1) 2001 revisions) (v.1) Clements 6th edition (incl. 2007 revisions) (v.1) [6], The two closest living relatives of LeConte's thrasher, the California thrasher and the crissal thrasher, form as the lecontei group. In its juvenile stages, the thrasher is darker brown, and its feathers looser and fluffy in appearance, especially on the vent. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Il est originaire des zones désertiques des États-Unis et du Mexique. [2][14], The diet is omnivorous, and includes arthropods such as beetles, scorpions, spiders, grasshoppers, butterflies, moth larvae, and small lizards and snakes. [10] There are noted differences among the subspecies. Toxostoma lecontei Lawrence, 1851. kingdom Animalia - animals » phylum Chordata - chordates » class Aves - birds » order Passeriformes - perching birds » family Mimidae - mockingbirds and thrashers » genus Toxostoma Toxostoma lecontei arenicola (w Baja California. Toxostoma lecontei macmillanorum: Inland central California (s San Joaquin Valley) Toxostoma arenicola : Vizcaino desert of central Baja California (29°N to 26°N) Source: Clements checklist Les pattes sont noires, de même que les yeux, qui sont surlignés de brun sombre. macmillanorum is a synonym of T. l. lecontei. They may share the same nesting shrub or tree with their competitors, such as the loggerhead shrike. The Animal Diversity Web team is excited to announce ADW Pocket Guides! Search in feature. Hap-lotypes were shared between lecontei and macmillanorum, and we do not support recog-nition of the latter. It prefers to live in deserts with very little vegetation, where it blends in with the sandy soils. eBird version 1.52 (v.1) TSN: 178645. [10] It is a monogamous species, and generally seen in pairs, and juveniles may form small parties from two to eight birds. Avibase taxonomic concepts v. 07 (Feb 2020) (v.1) eBird version 1.55 (v.1) This material is based upon work supported by the : 920581, Data Development History and Data Quality, Zoonomen - Zoological Nomenclature Resource, 2011.04.12, website (version 12-Apr-11), Go [10] It resides in some of the harshest climates in its region, including the Sonoran Desert and the San Joaquin Valley, and where annual rainfall only averages 4 to 20 cm. Avibase taxonomic concepts v. 05 (Jan 2017) (v.1) Enter your login name or your email address and click on Send reminder to receive a reminder by email. eBird version 2017 (v.1) Toxostoma [lecontei or arenicola] 2005 revisions) (v.1) [2][10][13] The clutch size ranges from 2 to 5 eggs, but the number is generally 3–4. While they generally do not have to drink, there has been one recorded instance of such an event. Privacy policy, Bird checklists - taxonomy - distribution - maps - links.


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