Again, one person is responsible for day to day activities. The National Wildlife Rehabilitation Association did a survey a few years ago and found that full time, wildlife rehabbers, put in an average 37 1/4 hours every week.
Again, this is a non paying, full time job. It is done because the rehabber has a deep connection & deep passion for helping these birds survive. The birds always come first.
There simply is not enough hours in the day to provide detailed follow ups to finders.
Birds are returned from where they came with only a few exceptions: