Canary Islands chiffchaff 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 common chiffchaff and the Iberian chiffchaff but compared to the common chiffchaff it has a longer bill, shorter wings
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