How did the plant adapt to the birds, for example: pollination or mechanism.

Many tropical plants have flowers that are pollinated by birds such as hummingbirds and sunbirds. Birds cannot sit on a flower, as they are very heavy. Therefore, in such plants, the pistil and stamens are very long and extend beyond the flower, while the nectaries, on the contrary, are located in the depths of the flower. Getting to the nectar, the birds touch the stamens and pistils with their breasts. Flowers are brightly colored to attract birds. Birds see them well, because they have color vision, but they do not need to smell – birds have a bad scent.