Canary Islands chiffchaff an active little bird with quick and frenzied movements, frequently flicking its wings and wagging or flicking its tail. Canary Islands chiffchaff The Canary Islands chiffchaff ("Phylloscopus canariensis") is a species of leaf warbler endemic to the Canary Islands, Spain. Sometimes the English name is spelled Canary Island chiffchaff. Previously the Canary Island chiffchaff was considered as a subspecies of the common chiffchaff ("Phylloscopus collybita"). Now it is recognised as a separate species under the name "Phylloscopus canariensis". There are two recognised subspecies but the Lanzarote subspecies is probably extinct; they are. The Canary Islands chiffchaff is similar to the
Genomic evolution of birds possibility of genomic expansion in mammals and reptiles. Also, there is no such genomic loss in any vertebrate group as great as that of birds. Its possible that the early chromosomic fragmentation event that lead to the appearance of microchromosomes in birds significantly contributed to this gene loss. These fragmentation events must have taken place in a common ancestor of most birds, since approximately every two out of three species studied have at least 30 pairs of microchromosomes, 2n = 80 being the size of the average karyotype of birds (with the only exception the family Falconidae, which are 2n