help #lovebird

Hello, so im a fairly new bird owner. i adopted a love bird from a shelter. shes very fearful of people cause she was never interacted with. shes starting to warm up to me a little bit. but i have been thinking about getting another love bird as a companion. but before i do so i want to ask...

I got a black masked lovebird couple exactly 2 months ago, at first the male had white feathers on its head, at first i thought he was molting but its been 2 months and hasn't changed at all. He also has sort of messed up feathers on the tail. Should i be concerned?

(Sorry for this essay worth of text). A month ago i got a beautiful lovebird couple, they're from the pet store and are pretty bipolar. My female (5 months old) was the first one to get close to me, and let me feed her through the bars, while the male (7 months old) took a bit more time. Since...