Join Date: Sep 2009
Location: Bellingham, WA
Thanked 130 Times in 103 Posts
Rep Power: 44
Only thing I can think of is, if they're really in bad shape (not just inappropriate cage size, but filthy dirty, bad food, bad water, bad health conditions) is to call Animal Care and Control. Just make sure they are 100% in need of rescuing because you can get fined for reporting someone when the animals don't need help.
You'd be surprised how many people truly love their birds but can't provide them appropriate cages... I see it a lot down here. Birds in too small a cage, but they're out every time the owner is home and get good food, good seed, and are well loved. Mind you, I'm not justifying your neighbors in any way because I don't know the situation, I'm just saying be careful with this. You'll most definitely make an enemy out of your neighbor so be ready for retaliation on ANYTHING you may do that is even slightly against rules and regulations for any reason - parking, lawn maintenance, noise levels, etc.