Budgie Questions

by MAggie

I have two budgies. One male and one female.

1. When ever my male parakeet gets near my female she starts biting him. Why and how can I stop that?

2.My two budgies are really picky eaters and will only eat seeds and millet. I tried giving them pellets and add some vitamins to them but they just eat the vitamins(which are mostly seeds and leave the pellets. How can I stop this habit?

3. My female has a little green thing on her beak and toe. What is it?