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 or two cone opsin genes. Birds also seem to have lost the functionality of their right ovary. There are two ovary development-related genes, MMP19 and AKR1C3, that have disappeared in birds. The fact that a high number of genes related to spermatogenesis are evolving fast (which does not happen in those related to ovogenensis) suggest that males undergo a stronger selective pressure. The abundance of genomic data available nowadays has enabled research to elucidate the early evolution and divergence of bird groups, and has produced a much more detailed phylogenetic tree. Genomic research has shown that in order to make