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Message: <blockquote data-quote="Joern Lehmhus" data-source="post: 145098" data-attributes="member: 3229">Hi all,this thing with the Collared_barbary-whatsoever doves on Tenerife is still causing problems for me; also after looking at my notes and books. Attached is  a rough drawing from Los Christianos, Tenerife. There were lots of Streptopela doves which I took for decaocto; but then I realized a very light coloured individual with clearly white undertail coverts (this bird did not call ; in size, structure and behaviour it was exactly like all others); and I also saw some individuals that were lighter coloured than most collared doves but not as light as this one individual. One of those birds I heard call and it gave the S.decaocto calls.Now the book Alex mentions in one of his previous mails is in contrast to Eduardo Garcia del Rey ; Where to watch birds on Tenerife? (from I think 1999). Garcia del rey says S.risoria - barbary dove is in danger to be replaced by Collared dove and there are only 2 areas where you can see them : Guaza Mountain (which happens to be the Mountain directly beside the beach and city of Los Christianos) and Ten-Bel- a tourist resort from a Belgian Company-there Garcia del Rey says Barbary doves have their last stronghold. For Guaza Mountain he also lists Collared dove as a common bird.A check in the dove breeders organisations pages in the net gave that risoria -decaocto hybrids and their offspring are near 100% fertile.I compared the drawings in Svensson/Grant/Mullarney/Zetterstroem_(S.decaocto there shown with white undertail coverts, no puic of risoria UTCov) with Sibley (decaocto with greybrown UTcov, black on outer rim of tail side extending further than on the other feathers, risoria with white UTCov, outer rim of tail side white; black area not as big as in decaocto_ not agood description-I am lacking the words)So did i see a hybrid population ? In all other cities the Streptopelias  I have clearly seen and heard fitted to the description on the right side of the attached sheet-therefore I assume them to be decaocto.And what undertail coverts are they really supposed to have!?!Please Help, anybody!!!!!!!!!!!!!!!!</blockquote>

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