"The domestic cat is often a beloved pet, but it's also a major threat to birds. Introduced to the United States with European colonists, the number of domestic cats has tripled in the past 40 years. Today, more than 100 million feral and outdoor cats function as an invasive species with enormous impacts. Every year in the United States, cats kill well over 1 billion birds. This stunning level of predation is unsustainable for many already-declining species like Least Tern and Wood Thrush." - American Bird Conservancy abcbirds.org/threat/cats-and-other-invasives It is kind to keep cats indoors, on a leash, or supervised in catios when outside. Doing so keeps nature safe and our cats safe! #birdfriendly #birdsafe #windowmarkers #glasscollision #featherfriendly