Iberian chiffchaff Previously the Iberian chiffchaff was considered as a subspecies of the common chiffchaff. As of 2016, it is recognised as a separate species under the name "Phylloscopus ibericus" for the following reasons (compared to the common chiffchaff): In past, erroneously listed as "Phylloscopus brehmii". Iberian chiffchaff The Iberian chiffchaff ("Phylloscopus ibericus") is a species of leaf warbler endemic to Portugal, Spain and North Africa, west of a line stretching roughly from the western Pyrenees via the mountains of central Spain to the Mediterranean. The name "chiffchaff" is onomatopoeic, referring to the repetitive "chiff-chaff" song of the common chiffchaff ("Phylloscopus collybita").
Hawking (birds) nighthawk does not). When different kinds of birds have the same adaptations, such similarities are not necessaily indicative of any familial relationship between bird species. Rather, they are the result of convergent evolution. Consider, for example, the marked resemblance in body size, shape, and coloration between flycatchers of several families, though these species are not closely related: the Asian brown flycatcher (of the Muscicapidae or Old World flycatcher family), Acadian flycatcher (of the Tyrannidae or tyrant flycatcher family) of the New World, and slaty monarch (of the Monarchidae or monarch flycatcher family), endemic to Fiji. All three use flycatching to