Birds first truly evolved in the Cretaceous period although their reptilian ancestors can be found in the fossil record throughout the Mesozoic in such extinct dinosaur species as Micro Raptor and Archaeopteryx. Birds evolved flight and with it a warm blooded metabolism enabling them to colonize parts of the world that other reptiles could not otherwise. In their newly colonized habitats, birds have adapted to fill as many niches as possible creating a large diversity among them. This diversity is often sought after by humans, particularly birder watchers or twitchers to see these beautiful animals in their native habitats. These bird photos are some of the many species I have seen while in such places as Ontario, Manitoba, Galapagos, Costa Rica, Bermuda, Cuba and Peru. While it does not represent the entirety of species I have seen, it acts to demonstrate the vast diversity of colouration, shape and size among bird species.