Do the birds pose threats?
Bird flus that cross over into humans typically are very deadly. H5N1 in humans has about a 60% fatality rate. H7N9 in humans has about a 40% fatality rate. I don’t know if the H5N6 mentioned in the article can infect humans. Bird flus that infect humans are rarely transmissible from person to person.
Bird flus are also a big problem for the poultry industry, because some influenzas can kill a whole flock in days.
Many, if not all, human influenzas originated in birds. They often start to circulate in a host such as pigs before they make the jump into humans and become true human pathogens.
Whenever a bird flu is found in domestic animals, the affected animals are culled, both to prevent more livestock losses and to prevent the disease from becoming a human pathogen.
“Do the birds pose threats?”
Yes. He brought a live one in one day and lost his grip on it. 10 minutes of feathers and the cat knocking things over to get it back until I grabbed the bird and tossed it back out. El Gato was pissed off at me.