Amazing photos. Not only beautiful but informative. NOW you owe us an explanation, or at least your theory, as to why these blooms imitate birds. Surly they don't hope to attract them as mates or some such thing.
Regarding the Parrot Flower, and hopefully before this thread leads people to add it to their want, trade, buy list, this is a protected plant, and the only way for you to view it is essentially an escorted trip in Thailand. Exportation carries heavy penalties.
While the flower is nice, the plant it flowers on is horrid.
Not too sure about the colors but the top fused petal keeps them dry as the Crotalarias have copious amounts of a very sweet nectar
pooled in the "body" of the flower. Here they are pollenated by several species of small bird.