Question: On which birds may you fulfill the mitzvah of Shiluach HaKein?
Short Answer: Unless you know for sure that the bird does not have the signs set forth in the Shulchan Aruch for kosher birds, you should fulfill Shiluach HaKein.
Question: To fulfill Shiluach HaKein, do you have to first catch the mother bird and remove her from the birds or is it sufficient to simply shoo the mother bird away with your hands or a stick?
Short Answer: Some poskim require you to first catch the bird, but most poskim rule leniently that any method is fine.