As a major cause in the decline of barn owls is the loss of nesting sites, providing artificial nesting sites on or near barns and outbuildings can really help.
Un o brif achosion y dirywiad mewn tylluanod gwyn yw colli safleoedd nythu, gall darparu safleoedd nythu artiffisial ar ysguboriau ac adeiladau allanol neu’n agos atynt fod o gymorth mawr.