Rusty-backed Spinetail © br.pinterest.com

Almost certainly the sister-species to Rusty-backed Spinetail (Cranioleuca vulpina). Formerly considered conspecific, but they are locally syntopic and widely sympatric, and field experiments strongly suggest reproductive isolation created by differences in songs. Relationships of the two to congeners uncertain as they differ vocally from all others. Isolated subspecies dissita, with distinctive voice and habitat preferences, may well be a separate species, but no convincing analysis yet published. Amazonian populations vary clinally in coloration of back and underparts.

In northern Brazil, proposed subspecies alopecias (from R Branco) and solimonensis (lower R Solimíµes) described on basis of less rufescent back and more ochraceous underparts, but considered indistinguishable from nominate. Sight records from north-central Bolivia (southern Beni) presumed to be referable to subspecies foxi.

The following 5 subspecies are recognised:

• dissita (Pelzeln, 1856)   -  Coiba I. (Panama).
• apurensis Zimmer, JT & Phelps, 1948   -  Western Venezuela (western Apure).
• vulpina (Pelzeln, 1856)   -  North-eastern Colombia (eastern Boyacá south to Meta and east to Vichada), central and southern Venezuela (Portuguesa, south-western Guárico, eastern Apure, northern Amazonas, and along R Orinoco in Bolí­var east to Delta Amacuro), western Guyana, northern and central Brazil (along R Amazon from extreme western Amazonas, and R Branco and lower R Negro, east to eastern Pará, and from lower R Madeira eastern and south to Mato Grosso, Goiás and western Sío Paulo) and extreme eastern Bolivia (north-eastern Santa Cruz).
• foxi Bond & Meyer de Schauensee, 1940   -  Central Bolivia (eastern Cochabamba; sight records also from southern Beni).
• reiseri (Reichenberger, 1922)   -  North-eastern Brazil (Piauí­, western Pernambuco, western Bahia).

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BirdLife International For more information about the Rusty-backed Spinetail see... BirdLife International Species Factsheet. Articles about the Rusty-backed Spinetail If you would like to read any articles about the Rusty-backed Spinetail... Show Articles (0) No Pictures of Rusty-backed Spinetail If Birdpedia has no pictures of Rusty-backed Spinetail or you would like to see more, then try the following...       From BING (10) No Videos of Rusty-backed Spinetail If Birdpedia has no videos of Rusty-backed Spinetail or you would like to see more, then try the following..       From BING (0) Where can I observe this species? Select an area (or leave blank) to see locations where this species has been recorded. Area   PANAMA OCEAN   All    Optional: Complete the following if you wish to restrict the reserve to within a given distance of a location. Please enter the Latitude and Longitiude of a given location together with the maximum distance (km) to display a list of reserves within that distance. You must enter a Latitude, a Longitude and a distance greater than 0.   Latitude: (Decimal degrees takes precedence) Deg Min Sec     Decimal degrees (Include compass setting or value)          N S or   GPS help Longitude: (Decimal degrees takes precedence) Deg Min Sec     Decimal degrees (Include compass setting or value)          E W or   Find GPS using Google Maps Distance Bearing     N NE E SE S SW W NW Get Sample GPS readings On What Field Trips was this species observed? Select an area (or leave blank), and a date range, to see field trips on which this species has been recorded. Area   PANAMA OCEAN   All    From To     Optional: Complete the following if you wish to restrict the reserve to within a given distance of a location. Please enter the Latitude and Longitiude of a given location together with the maximum distance (km) to display a list of reserves within that distance. You must enter a Latitude, a Longitude and a distance greater than 0.   Latitude: (Decimal degrees takes precedence) Deg Min Sec     Decimal degrees (Include compass setting or value)          N S or   GPS help Longitude: (Decimal degrees takes precedence) Deg Min Sec     Decimal degrees (Include compass setting or value)          E W or Distance Bearing     N NE E SE S SW W NW Get Sample GPS readings Latest Sightings for Rusty-backed Spinetail Select the Area to restrict the Sightings. Area   PANAMA OCEAN   All