Other injuries, to wings or legs, for example, can leave birds unable to fly and vulnerable to cats or other predators. If you find an injured bird, contact a local wildlife rehabilitator.

However, since the bird has been flying at 15 to 20 miles per hour, ... Cats and windows are deadly for birds, but habitat destruction is the biggest threat to wild birds globally.

Light pollution can confuse and attract migratory birds flying at night, increasing the likelihood they strike buildings and expose them to threats in heavily populated areas like cats and toxins.