Taxonomic evaluation of the Grallaria rufula (Rufous Antpitta) complex (Aves: Passeriformes: Grallariidae) distinguishes sixteen species
Author
Isler, Morton L.
Author
Chesser, Terry
Author
Robbins, Mark B.
Author
Cuervo, Andrés M.
Author
Cadena, Carlos Daniel
Author
Hosner, Peter A.
text
Zootaxa
2020
2020-07-21
4817
1
1
74
journal article
10.11646/zootaxa.4817.1.1
1175-5326
3954698
7CBDB6A9-9AF9-495F-A55A-83BF36A4934D
Grallaria cochabambae
Bond & Meyer de Schauensee, 1940
, subspecies elevated to species
Bolivian Antpitta
Includes population designated
cochabambae
2
in the analysis.
Diagnosis.
Upperparts dark reddish yellow-brown; underparts paler grading to pale buffy brown on center of belly and undertail coverts; pale feather edgings and pencil streaks on belly; pale eye-ring. Short songs of two unmodulated notes distinguish
G. cochabambae
(
Fig. 18
) from all other populations except
G. sinaensis
and the nominate form of
G. occabambae
. The flat or slightly downslurred shape of short song notes of
G. cochabambae
distinguishes them from the rounded notes of those of
G. occabambae
. The internote interval of short songs of
G. cochabambae
is significantly longer than that of
G. sinaensis
and significantly shorter than that of
G. occabambae
. Long songs of
G. cochabambae
differ from those of
G. sinaensis
and
G. occabambae
in their sharply downslurred note shape and in their significantly faster pace. They differ from long songs of
G. occabambae
by their falling and rising frequency pattern and by their duration pattern, in which notes lengthen, become even, and shorten while intervals remain more constant. They differ from long songs of
G
.
sinaensis
by the lesser extent that frequency rises in the terminal half of the song.
Distribution.
Endemic to
Bolivia
in eastern
La Paz
and
Cochabamba
,
2950–3500 m
.
Plumage.
Overall plumage of upperparts, including rectrices, remiges (primaries edged paler), crown and auriculars, dark reddish yellow-brown (7.5YR 4/4), shading to color of underparts in malar area; eye-ring pale. Throat and breast reddish-yellow-brown (7.5YR 5/8–5/6); belly and undertail coverts pale buffy brown (10YR 7/4), pale feather edgings and pencil streaks restricted to belly; flanks dark reddish yellow brown (7.5 5/4) (specimen photographs App. 6, Fig. A32).
Etymology.
The English name refers to the country to which this species is endemic. The name was also used by
Krabbe
et al.
(2019)
.
Remarks.
The
type
locality (Incachaca,
Cochabamba
) of
G. rufula cochabambae
falls within the geographic range of this species.