I have two little lovebirds. One of them is a male and the other is a female, I know this because they have had viable offspring in the past. The female lovebird is losing her feathers around her lower abdomen. She seems healthy and she's still eating, however, I'm concerned that she might get worst and I don't know if I should take her to a vet. Please let me know what you all think and any advice is welcome .