An "observant owner" refers to someone who pays close attention and notices things about what they own or take care of.
Sentences with «observant owner»
A pet may have heart disease and even the most observant owners may not realize it. (saharapinesah.com)
Defying the Odds Everyone loves a champion and the post about a dog surviving not one, but two different toe tumors, was a story of observant owners, a resilient dog, and great cancer care. (amcny.org)
A truly observant owner will actually see the cat licking the area but cats, being private creatures, often do their licking when no one is watching. (marvistavet.com)