The pollination realised by birds is well-known also as ornitofilia. The most well-known species within the group the polinizadoras birds is the hummingbird, but others as suimangas, the creepers and the hermits exist.
Ornitofilia extends by America, Center and the South of Africa, Australia, New Zealand and tropical Asia. The species that is known more (of almost 300 that visits the plants) is the hummingbird, of the Trochilidae family; it is possible only to be found in North America and of the South, although also it can add others as suimangas, nectarines or birds sun (all of them of the Nectariniidae family), small parrots (Psittacidae) the creepers and the hermits.
The birds do not pollinate any flower: usually they approach the plants whose flowers own strong colors and a tubular form that allows to store great amount of nectar. In addition, they emphasize the red color, although they also visit yellow and orange flowers; its visual sensitivity is quite similar to the one of the human eye.
Generally, the plants that need the birds to reproduce have strong colors, as red or yellow, and its tubular form allows that they store a great amount of nectar.
The task is not easy, often the birds are with a complication: the flowers that visit usually have pendulum form, reason why they lack a surface so that the bird can settle and carry out its task of extraction of the nectar.
As far as the flowers, we can find them in tropical zones. In order to generate the interest of the birds and to attract them towards the nectar (it is of character flowed, in great amount and or hidden), they show signals of nectar, spots or lines of the corolla. Thanks to their tubulosa language the birds can extract the nectar of the tubular structure of the flower. This way, pollen sticks to the tip of the bird or other parts of its head.
Polinizadoras types of birds
There are several types of polinizadoras birds that feed themselves on nectar. The most known they are the hummingbirds (Trochilidae family), that only inhabit in North America and of the South and between which we can find more than 300 species habitual visitors of the flowers. Other examples are the families Nectariniidae (suimangas, nectarines or birds sun), Psittacidae (small parrots) and Meliphagidae (hungry of honey), who essentially include species of the tropical forests of Africa, Asia and Australia.
Other types of pollenizers
The birds do not represent the group the more important nor most numerous pollenizer. That place the insects occupy it, that are elevated as the oldest and majority agents of the pollination. Within them, we found great cuatros groups: the himen³ptero order (wasps, bumblebees, bees and ants); the dipterous ones (flies); lepid³pteros (butterflies and moths); and coleopters (beetles).
In addition, they can contribute to his sand granite some snails, lemurs, bats (of night work), nonflying mammals - group integrated by marsupial, erosive and primates and some reptiles as the small lizards. One calculates that they are the 308,000 species that participate in the pollination to world-wide level.