male-blue, grey, black, white
female-green, yellow, black, white
Budgies in their native habitat are green and yellow, although for pet budgies there are now other colors including but not limited to: Sky blue, White, Violet, Olive, Turquoise. Budgies usually have at least two of these colors in a pattern such as Opaline, spangled or cinnamon.
Green
Canaries are typically larger than budgies, with longer bodies and tails. Canaries also have a more melodious song compared to the chirping of budgies. In terms of colors, canaries come in a wide variety of shades, while budgies usually have a mix of green and yellow feathers.
This question is a matter of opinion. Some people like English budgies better than regular budgies or other people like regular budgies better than English budgies.
By colours you mean mutations. Budgies come in many different mutations. This is a good guide to mutations: http://www.budgieplace.com/colors.html
Yes, budgies are parakeets.
Budgies are parakeets. They eat seed
Yes, they're called gay budgies, ey.
Yes, budgies can certainly imitate whistling sounds.
when can baby budgies eat on their own
Yes, lots of people have pet budgies.
snakes eat budgies so you better watch out