Birds: Their Habits and Behaviour

Birds :Their habits and behaviour. Distinctive characters of birds : 1.         Birds ar feather clad, air breathing, warm blooded, oviparous and biped flying vertebrates. 2.         They restrain a streamlined ear influence ashes that helps them to fly in air. 3.         The birds body is dissociative into 4 distinct parts - head, tail, neck and t take upk. 4.         The entire body of birds is invested with a close covering of feathers, constituting the plumage. 5.         The birds know two parallel of limbs: -the fore limbs which argon modified into wings and the hind limbs or legs 6.         The skin of birds are dry. 7.         They pee light bodies.(As their bones are hollow and hire air cavities.) 8.         Their hearts have 4 chambers. 9.         They are homothermous animals. 10.         They have a small tongue just now no d entition. The functions of the teeth are done by an organ called gizzard in their Stomach. 11.         The lungs of birds are spongy compact and have air cavities in them. 12.         They excrete semisolid waste in form of uric acid. 13.         Their syrinx(voice box ) is located at the prow of their windpipe. 14.         Though their mavin organs of smell is poorly positive their eyesight is real good. 15.         They have separate sexes. 16.         Male birds have a pair of testes but often lack the penis.

The distaff birds have a single functional ovar y and oviduct. 17. !         Fertilization is internal. 18.         The pelt of birds are bear-sized with much yolk and hard shell. 19.         Parental sustenance of the materialization newly hatched birds is well marked in birds. Types of birds :- 1.         flightless birds :-These birds are usually large with long goodish legs. E.g. ostrich which though weighing 150 kilograms can run at a speed of 80 kms /hour. 2.         Flying birds Adaptations of birds :- A) ... If you regard to expire a full essay, order it on our website: BestEssayCheap.com

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