Noted: After taking a look, the lab asked her to freeze the birds and send them in. In conjunction with the University of Wisconsin–Madison wildlife laboratory, researchers identified the worms as the parasite nematode Splendidofilaria pectoralis, which is found in warmer-climate species. The researchers saw the appearance of the disease as an indicator of the rapidly changing climates in northern areas and published an article based on the findings in the Ecological Society of America Journal, all based on Kotongan’s original post on the LEO network.