A.berthelotti |
There is a wide range of endemic or near-endemic species and
subspecies of insectivorous passerines on the Canaries, which reflects the
complicated ecological history of the islands. As the only breeding pipit in
the region, Berthelot’s Pipit Anthus berthelotti is found on the Canaries, Madeira,
and some nearby smaller islands. I found it very confiding – the photo at the
top of this post was taken from only a few feet away as it hopped around our
feet in a car park on Fuerteventura. As with almost all pipits’ it is a ground
nesting bird, which must make it vulnerable to feral cats, but despite this the
species is doing well in its range, and is listed as Least Concern by the IUCN.
M.cinerea canariensis |
The local subspecies of the Grey Wagtail, Motacilla cinerea
canariensis, was seen on several days while we were on Tenerife, mostly around
reservoirs. Grey wagtails are stream-loving birds mostly, which means available
habitat on the Canaries is not widely available, and they may be more flexible
in their habitat preferences as a result on the volcanic islands where water
tends to disappear into the porous rock very quickly.
T.merula cabrerae |
Also doing well is the local race of Blackbird, Turdus
merula cabrerae. This is very similar to the subspecies we have in the UK, but
is more glossy and the female is much darker brown. They were seen in the hotel grounds on Tenerife, so they are as fond of gardens on the Canaries as they are back here in the UK.
E.superbus - note eye ring and white underparts |
I did not manage to get a photo, but we eventually managed
to obtain distant views of a Tenerife Robin, Erithacus (rubecula) superbus. This
is currently classed as a subspecies of European Robin, but it is very probable
that this should be classed as a separate species, E.superbus. They are very distinctive, with white underparts and a white eye-ring, and they also sound different to mainland robins. Just as importantly, the
superbus-type robins, currently found on bother Tenerife and Gran Canaria, are
also genetically different to each other, with the Gran Canaria birds also
having measurably shorter wings. This implies that in fact superbus should itself
be split into two species for the two islands. The paper in Avian Science
(2003) suggests that the time split between the endemic forms and the mainland
species is close to 2 million years. The other islands on the Canaries are
occupied by apparently standard mainland robins.
S.dacotiae |
The most important of the endemics that we saw were the
endemic Canary Island Stonechat, Saxicola dacotiae. With an estimated total
population of around 750 pairs, it is classed as Near Threatened, mostly as a
result of habitat destruction by overgrazing and predation by feral cats. An
isolated population, subspecies murielae, was formerly found on an isolated
islet at the far north end of Lanzarote, although curiously it was never found
on Lanzarote itself, but it became extinct in the early 29th
century. In recent years Canary Stonechats of the nominate race have been
reported present, and possibly breeding, in the south of Lanzarote having
spread from Fuerteventura. The chats have similar habitat preferences to their
relatives – open country with low bushes they can perch on as they scan the
ground for the various insects that are their main prey. As with the robins,
they probably colonised the islands within the last few million years.
Next time, I will finish off the insectivorous passerines.
(pipit and stonechat images are mine, other are from Wikipedia)
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