Just like dogs and cats, some birds will be far more chill with being trimmed than others. I have a phoenix hen (bless her heart) who just can't get her nails worn down on her own. Hasn't been able to for her whole life. She's much better at letting me pluck her up when she's waiting for food to...
If the ground is too soft and they can't wear them down, yes. If they have white nails, you can usually see the quick enough to avoid it. If they're dark nails, you have to just kinda guess and only take off small clips until they're shorter. If you hit a quick, cornstarch pressed against the...