Fig. 1.

Gross lesions observed from a subset of birds submitted for necropsy and tested positive for high pathogenicity avian influenza virus H5N1 examined over the period covering 12 October 2021 to 24 February 2022.

Species examined included chicken (Gallus gallus domesticus, n = 91), turkey (Meleagris gallopavo, n = 3), pheasant (Phasianus colchicus, n = 14), guineafowl (Numida meleagris, n = 2), peafowl (Pavo sp., n = 1), domestic duck (Anas platyrhynchos domesticus, n = 16), tufted duck (Aythya fuligula, n = 2), domestic goose (Anser anser, n = 2), mute swan (Cygnus olor, n = 1), jackdaw (Corvus monedula, n = 2), and white-tailed eagle (Haliaeetus albicilla, n = 1). The numbers in the heat map indicate the percentage of birds observed with stated pathological changes.