Crypturellus obsoletus obsoletus ( Temminck, 1815 )

Gomes, Vitor & Silveira, Luís Fábio, 2021, On the validity and taxonomicstatus of Crypturellus obsoletus griseiventris (Salvadori 1895) and C. o. hypochraceus (Miranda-Ribeiro, 1938) (Aves, Tinamidae), Zootaxa 4951 (2), pp. 321-341 : 333

Crypturellus obsoletus obsoletus ( Temminck, 1815)

Tinamus obsoletus Temminck, 1815 . Histoire naturelle générale des pigeons et des gallinacés. Tome 3, pp. 588, 751. Cryptura caerulescens Vieillot, 1819 . Nouveau dictionnaire d’histoire naturelle. Tome 34, p. 101.

Tinamus rufus Lesson, 1831 . Traité d’ornithologie. Tome 1, p. 513. (cited as a synonym)

Crypturellus obsoletus laubmanni Neumann, 1933 . Verhandlungen der Ornithologischen Gesellschaft in Bayern 20, p. 181.

Common name: (English) Brown Tinamou, (Portuguese) inhambuguaçu ( Fig. 6a ). Syntype: MNHN-ZO-2011- 615.

Type-locality: around São Paulo city, Brazil (-23.5, -46.6), 580 m.

Description: dark gray crown and nape; gray sides of head; chocolate brown upperparts, subtly vermiculated with black; rufous brown chest, orange belly paler; buff flanks and undertail coverts, barred with black.

Diagnosis: can be diagnosed from Crypturellus griseiventris by having a rufous chest and an orangish, not buff, belly. It also has a distinct vocal pattern, emitting a series of 2‒13 notes, with the first one being longer and followed by a brief pause.

Voice: emits a single note, similar to a guard whistle. Produces a series of at least 10 notes (up to 84), getting higher and faster in the end. It also produces a shorter series of notes (2‒13), with the first one being longer and followed by a brief pause, before shorter notes are emitted.

Distribution: in Brazil, from southern Bahia to Rio Grande do Sul states, in Atlantic Forest. A few records in Cerrado biome in central Goiás, southern Mato Grosso and northern and southeastern Mato Grosso do Sul. In southeastern Paraguay, in Alto Paraná, Amambay, Caazapá, Canindeyú, Concepción, Guairá and Itapúa departments. In Argentina, in Misiones and Formosa provinces. One record from eastern Uruguay, in Cerro Largo.

Examined material: MN 4513‒4518, MN 7714, MN 10332, MN 19407‒19409, MN 20033‒20035, MN 20271‒20274, MN 20358, MN 21220‒22262, MN 24556, MN 24557, MN 24559, MN 24561, MN 25485, MN 26262, MN 26263, MN 26813, MN 32345, MN 37211, MN 38314, MN 38797, MN 45969, MN 45970, MN 46342, MN 46750, MZUSP 670, MZUSP 1590, MZUSP 2368, MZUSP 2369, MZUSP 4777, MZUSP 5167, MZUSP 8178, MZUSP 11337, MZUSP 12563, MZUSP 24379, MZUSP 24380, MZUSP 24545, MZUSP 26068‒ 26070, MZUSP 27138‒27140, MZUSP 27496‒27499, MZUSP 29262, MZUSP 31541, MZUSP 32142, MZUSP 32817‒32819, MZUSP 32827, MZUSP 34288, MZUSP 34739, MZUSP 36075, MZUSP 36127, MZUSP 38876, MZUSP 43152, MZUSP 43357, MZUSP 43358, MZUSP 47488, MZUSP 47489, MZUSP 49326‒49330, MZUSP 51278, MZUSP 54380, MZUSP 54781, MZUSP 56385, MZUSP 56386, MZUSP 66158, MZUSP 97704, MZUSP 100395, MZUSP 102983.

Figures

FIGURE 6. Color plate showing the plumage differences between Crypturellus obsoletus obsoletus (a), and Crypturellus griseiventris (b). Plate by Eduardo Brettas.