Beaks of birds - generally
Birds of all vertebrates have a remarkably low weight in comparison to his body. This is true for several of their characteristics, including the bones filled with air or streamline the shape of the body. These properties are especially needed on the fly, since they make it possible to reduce weight and save energy...
Basic shapes
The types of beak trimming are still various. For example, their shape does not depend solely on the type of food consumed, but also the environment where the feed and how to acquire this food. The basic shapes of the mouth is a simple and conical...
Polls
Individuals that have the most specialized beaks are those that generally feed on the mud, spijają nectar of flowers or odcedzają small animal from the water. An ideal example is curlew. Its beak is long and curved at the end...
Shovels and sieves
One of the most bizarre to have the birds beak trimming, which deal with food odcedzaniem set out in the water. Warzecha example, zeroed in shallow water, with wymachuje on the sides of his beak submerged in water. Finally it is extended to much sensitive, so even najdelikatniejsze comes into contact with another animal (eg fish) triggers a reflex, allowing detection advantage...
Hooks and dust
Most probably have specialized beaks birds of prey. It can be noted, inter alia, in Sokołów. They are hard, and ended in some species are part of the defense...