1、The upper cover of the box body is set at an inclined angle of 35 to 60 to effectively prevent drinking tank from pollution. 2、The rotatable pipe set on the top cover solves the problem that pigeons can't stand and defecate. 3、The support rod is a 360° rotating circular tube, it will not stuck pigeon hair. 4、The drinking water device can control the water level of the drinking tank to prevent the pigeons from heatstroke due to lack of drinking water. 5、The drinking water tank is connected with the drinking water port by a split hasp, which can facilitate the cleaning of the drinking water tank.