Bird preventing device for pear trees

The utility model provides a pear tree anti-bird device which comprises a rotating block body, the rotating block body is of a circular block body structure, the peripheral face of the rotating block body is fixedly connected with twenty rubber expelling strips in an annular array shape, and the rubber expelling strips are of a rectangular strip-shaped structure; a weight increasing column is fixedly mounted at the bottom end of each of ten rubber expelling strips in the twenty rubber expelling strips, each weight increasing column is of a cylindrical structure, a strip-shaped notch is formed in the bottom end face of each of the other ten rubber expelling strips, each strip-shaped notch is of a rectangular notch structure, and the length of each strip-shaped notch accounts for two thirds of the length of each rubber expelling strip; the ten rubber expelling strips with weight increasing columns fixedly installed at the bottom ends and the ten rubber expelling strips with strip-shaped notches formed in the bo