"Other collision's" kinda takes blame away from what's happening, its glass windows. This from wiki: "a 2024 study on the survival rate of bird-building collision victims indicates that previous research was vastly underestimating the number of deaths caused by collisions, and in actuality well over 1 billion birds die from collisions in the United States every year."

Fun fact, there's a layer they can put in glass that makes it visible to birds but not us, but its more expensive, so it isn't used most places!