The most distinct birds are those of Gran Canaria  (E. r. marionae) and Tenerife (E. r. superbus), which may be considered two distinct species or at least two different subspecies.
It is readily distinguished by a white eye-ring, an intensely coloured breast, and a grey line that separates the orange-red from the brown colouration.
Its belly is entirely white.

Cytochrome b sequence data and vocalisations indicate that the Gran Canaria/Tenerife robins are indeed very distinct and probably derived from colonisation by mainland birds some 2 million years ago.

Christian Dietzen, Hans-Hinrich Witt and Michael Wink published in 2003 in Avian Science a study called "The phylogeographic differentiation of the European robin Erithacus rubecula on the Canary Islands revealed by mitochondrial DNA sequence data and morphometrics: evidence for a new robin taxon on Gran Canaria?".
In it they concluded that Gran Canaria's robin diverged genetically from their European relatives as far back as 2.3 million years, while the Tenerife ones took another half a million years to make this leap, 1.8 million years ago.
The most likely reason would be a different colonization of the Canaries by this bird, which arrived at the oldest island first (Gran Canaria) and subsequently passed to the neighboring island (Tenerife).

A thorough comparison between marionae and superbus is pending to confirm that the first one is effectively a different subspecies.
Initial results suggest that birds from Gran Canaria have wings about 10% shorter than those on Tenerife.
The west Canary Islands populations are younger (Middle Pleistocene) and only beginning to diverge genetically.
Robins from the western Canary Islands: El Hierro, La Palma and La Gomera (E. r. microrhynchus) are similar to the European type subspecies (E. r. rubecula).

Finally, the robins which can be found in Fuerteventura are the European ones, which is not surprising as the species does not breed either in this island or in the nearby Lanzarote; they are wintering birds or just passing through during their long migration between Africa and Europe.
The most distinct birds are those of Gran Canaria  (E. r. marionae) and Tenerife (E. r. superbus), which may be considered two distinct species or at least two different subspecies. It is readily distinguished by a white eye-ring, an intensely coloured breast, and a grey line that separates the orange-red from the brown colouration. Its belly is entirely white.
Cytochrome b sequence data and vocalisations indicate that the Gran Canaria/Tenerife robins are indeed very distinct and probably derived from colonisation by mainland birds some 2 million years ago.
Christian Dietzen, Hans-Hinrich Witt and Michael Wink published in 2003 in Avian Science a study called "The phylogeographic differentiation of the European robin Erithacus rubecula on the Canary Islands revealed by mitochondrial DNA sequence data and morphometrics: evidence for a new robin taxon on Gran Canaria?". In it they concluded that Gran Canaria's robin diverged genetically from their European relatives as far back as 2.3 million years, while the Tenerife ones took another half a million years to make this leap, 1.8 million years ago. The most likely reason would be a different colonization of the Canaries by this bird, which arrived at the oldest island first (Gran Canaria) and subsequently passed to the neighboring island (Tenerife).
A thorough comparison between marionae and superbus is pending to confirm that the first one is effectively a different subspecies. Initial results suggest that birds from Gran Canaria have wings about 10% shorter than those on Tenerife. The west Canary Islands populations are younger (Middle Pleistocene) and only beginning to diverge genetically. Robins from the western Canary Islands: El Hierro, La Palma and La Gomera (E. r. microrhynchus) are similar to the European type subspecies (E. r. rubecula).
Finally, the robins which can be found in Fuerteventura are the European ones, which is not surprising as the species does not breed either in this island or in the nearby Lanzarote; they are wintering birds or just passing through during their long migration between Africa and Europe.
European robin