An article written by Greg Glendell about behaviour problems in parrots, published in the Veterinary Times in 2008. See more about Greg and what he can do for your parrot at www.greg-parrots.co.uk He has also written a book called "Breaking bad habits in parrots" available here: www.greg-parrots.co.uk/books.php
Parasites are commonly seen in reptiles, particularly tortoises and lizards. In some cases these parasites can make a reptile ill. There are many different types of parasites and this article will hopefully give you a bit more insight into this common problem.
Birds are amazing creatures, they are extremely intelligent animals and they are well adapted to survive life in the wild. Birds have been kept in captivity for over 4000 years. But they are not really “domesticated” like dogs and cats are. They are still wild animals and have the instincts of wild animals. Most of the species of birds kept as pets are prey species, so to survive in the wild they have to evade predators. If a bird is showing signs of illness it will easily be picked off by a predator. Therefore it is natural for a bird to hide any signs of ill health until it absolutely can not manage it any more. This means that owners often do not pick up on signs of ill health until a bird is extremely unwell. Birds are also small fragile animals with a fast metabolic rate. This means that injuries can often be extreme, and loss of blood or fluid can quickly lead to a very ill bird. For these reasons in most cases when a bird is ill it is an emergency and needs to be seen by a Vet quickly.