I've been working for the past 4 days with a wild male House Finch that has lost his tail feathers. My #1 question is: How long does it take for tail feathers to grow back? He is seemingly completely healthy otherwise, eats & drinks well, likes blinds open and music or TV on (chirps along with sounds). I have him an a standard domestic finch cage and he seems to be adjusting quite well considering I'm sure he would rather be back where he belongs. When I cover the cage at night, he immediately settles in and doesn't make a peep until I open his blinds and remove the cover in the AM. Any help would be greatly appreciated, I hope to be able to return him to his place of origin as soon as he is able to fly again. Thanks, in advance, for your input.