Dr. Victoria Bowes, British Columbia Ministry of Agriculture, June 2013: In the winter of 2011, and again in 2012, an unexpected record number of overwintering Snowy Owls arrived along the southern coast of BC
South China Morning Post, Jan. 20, 2013: […] snowy owls arrive in Vancouver […] worrying bird welfare experts […] The owls perch listlessly […] the second winter in a row that Vancouver has been treated to a visit […] raising concern among experts who say the owls should normally only visit Vancouver every five or so years […] some of the birds are badly emaciated.
Rob Hope, Orphaned Wildlife Rehabilitation Society: Some were suffering from asperogillosis, a breathing problem […] that can be triggered by a weakened immune system or malnutrition. [Owls arrived in] November, earlier than they would normally venture so far south […] “We have been finding a lot in very poor condition by the time they arrive. They are already in a weakened state.”