feather picking造句

• Examples of stereotypical behaviors include pacing, rocking, swimming in circles, excessive sleeping, self-mutilation ( including feather picking and excessive grooming ), and mouthing cage bars.
• In a cage, with no escape path, they can be subjected to stress which often leads to feather picking ( as with many pet birds ).
• "Feather picking is a common behavorial problem among companion birds, " said Barry Hartup, a professor of wildlife medicine at the Cornell University College of Veterinary Medicine.
• The same study found that feather picking was more common in females and that there was no social transmission of the behavior; neighbors of feather picking birds were only more likely to show the behavior as well if they were related.
• The same study found that feather picking was more common in females and that there was no social transmission of the behavior; neighbors of feather picking birds were only more likely to show the behavior as well if they were related.