Apparatus for covering a feeding aperture (240) of an animal shelter (200) comprises at least one first curtain (120) which includes a first edge (122) from which it can be fastened to the upper edge (244) of the feeding aperture, and a second edge (124) which is dimensioned to extend at least close to the lower edge (242) of the feeding aperture when the curtain is hanging freely. The apparatus further comprises a turning mechanism (102, 106, 108, 110, 112) for moving the second edge of the curtain in the first direction towards the interior of the animal shelter and in the second direction away from the interior of the animal shelter. Preferably, the turning mechanism comprises swinging arms (110),that can be arranged to the upper edge of the feeding aperture. The second edge of the first curtain is moved by changing the position of the swinging arms.
