Our favorite one way trap for White Doves is a drop trap. It is shaped like a funnel so that the birds can walk into the large end from the landing platform and then jump to the inside of the loft. They cannot go out because their wings are extended when flying and they cannot reach the opening unless they are flying. It is effective, simple, and easier to train your birds with than traditional Bobs. SAVE MONEY! Make your own. Download plans and instructions to make a drop trap from simple materials that you can purchase locally. No shipping. No waiting.