For an explanation, see the main splats page
- Birds make a natural group of animals, all having feathers and scaly legs, all being warm-blooded and egg-laying. On the ground, they move on two legs.
- Aside from their physical similarities, birds have many similar behaviours: most of them make nests for their eggs, care for their young, and tend to flock together.
- Birds of a species all nest in the same way, because nest-building behaviour is driven by instinct, although the materials used for the nest may vary.
- Birds select a mate with care, and most birds provide detailed support for their young, except for cuckoos, hatching the eggs and feeding the young birds.
- Cuckoo behaviour is a trade-off that works for the cuckoos, which can spend more of their energy in producing extra eggs, rather than feeding their young.
- If enough birds began to behave like cuckoos, the strategy would no longer pay off, and the birds would either need to change their behaviour or go extinct.
- As a general rule, species which are under threat of extinction have no way of perceiving the threat, so it is improbable that they will change their behaviour.
- Birds are adapted in many ways for how they live: they are able to live in all of the environments where humans can live, and a few where humans cannot.
- Wild birds can be identified in a variety of ways: from traces and tracks, by their calls, their plumage and beaks, their size, location, and the way they fly.
- All birds show behaviour, and birds of the same species show similar behaviour, but most birds are also able to learn new behavioural patterns.
- Flightless birds have evolved from flying birds, which was a change that allowed them to grow larger or to function better in the absence of predators.
- Flight feathers can be recognized even in a fossil, because the feathers are asymmetrical, with the narrower edge to the front (leading edge) of the wing.
- Fossils of Archaeopteryx have feathers on their wings which are narrower on the leading edge (front side), showing that Archaeopteryx could fly.
This file is http://members.ozemail.com.au/~macinnis/scifun/, first created on February 18, 2009. Last recorded revision (well I get lazy and forget sometimes!) was on February 18, 2009.
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