Category Archives for Lives of Birds

Birds and How They Learn

Goed kauwen

So far I have been attempting to describe some simple aspects of instinctive behaviour but birds are capable of a little learning. This has been defined by Professor W.H. Thorpe as ‘the process which manifests itself by adaptive changes in … Continue reading

30. September 2011 by admin
Categories: Lives of Birds | Tags: | Comments Off on Birds and How They Learn

Watching Bird Behaviour

Preening

The study of bird behaviour involves the study of a bird’s reactions to objects and situations it meets in everyday life. It is easy to see what a bird is doing but you have to be very careful about interpreting … Continue reading

30. September 2011 by admin
Categories: Lives of Birds | Tags: , , , , , , | Comments Off on Watching Bird Behaviour

Birdwatching: The Five Senses

Vision This is of prime importance as it allows them to find their food, to avoid their enemies and to recognize their mates. Some birds have a very highly developed sense of sight which is not surprising when one remembers … Continue reading

29. September 2011 by admin
Categories: Lives of Birds | Tags: , , , , , | Comments Off on Birdwatching: The Five Senses

Birds: Feather Maintenance

Feather of male Pavo cristatus (Indian peafowl)

Proper maintenance ensures that the feathers are kept in good condition between moults. Preening is the most important form of maintenance and a bird will spend quite a large proportion of its day pulling feathers through the tip of its … Continue reading

29. September 2011 by admin
Categories: Lives of Birds | Tags: , , , , , , , , | Comments Off on Birds: Feather Maintenance

Birds Feather Structure, Function, Colour and Moult

Shaft of male Indian Peafowl tail feather (Pav...

Feather structure Feathers, which distinguish birds from other animals, develop from a knob or papilla located within a feather socket or follicle. The material of which the feather is composed is basically the same as that in the horn on … Continue reading

29. September 2011 by admin
Categories: Lives of Birds | Tags: , , , , , | Comments Off on Birds Feather Structure, Function, Colour and Moult

Reproductive System of Birds

House Sparrow (Passer domesticus) in Kolkata, ...

In male birds the two testes lie within the body cavity fairly close to the kidneys. From each of these there is a minute duct leading to the cloaca. Adult female birds, unlike other vertebrates, have only one functional ovary … Continue reading

27. September 2011 by admin
Categories: Lives of Birds | Tags: , , , , | Comments Off on Reproductive System of Birds

The Bird’s Digestive System

Great Black-backed Gull, Virginia

The digestive system is based on a tube which runs through the bird from its mouth to cloaca. Along this tube various glands secrete the chemicals which break down the food into substances which the body cells can assimilate. Some … Continue reading

27. September 2011 by admin
Categories: Lives of Birds | Tags: , , , | Comments Off on The Bird’s Digestive System

How Birds Move and Fly

Birds move about either by use of their wings or their legs. Some birds use one method of locomotion more than the other. The Ostrich has lost the power of flight and to compensate has very powerful legs. On the … Continue reading

27. September 2011 by admin
Categories: Lives of Birds | Tags: , , , | Comments Off on How Birds Move and Fly

The Anatomy of Birds

Meadow Pipit (Anthus pratensis)

The structure of most birds is related to their ability to fly and this imposes a number of restrictions on their bone structure and body shape. Because a bird can fly it is desirable that its bones should not only … Continue reading

27. September 2011 by admin
Categories: Lives of Birds | Tags: , , | Comments Off on The Anatomy of Birds

The Origin of Birds

2008-08-20 London Wetlands Centre, Sir Peter S...

T.H. Huxley, the great evolutionist, called birds ‘glorified reptiles’ for quite clearly they have evolved from reptiles. Their early ancestors were similar to some of the dinosaurs of the Triassic period, millions of years ago. These were long-tailed, long-legged, lizard-like … Continue reading

27. September 2011 by admin
Categories: Lives of Birds | Tags: , , , | Comments Off on The Origin of Birds

← Older posts

Follow

Get every new post delivered to your Inbox

Join other followers: