This is a typical New Yorker cartoon, meaning it’s not obvious, it’s a slight play on words, it’s very slightly current, and may not even be funny. :)
The idea behind the caption is that his blog may be his third pet. Or maybe I just like the way dog and blog almost rhyme.
Here’s how to buy this or any Animal or Pet cartoon for powerpoint, magazines, advertising, newsletters, blogs, textbooks, Chicken Soup books, etc.
ID #2619xx Caption: You have a bird, a dog, and a blog. (talking bird tells man he treats his blog like a pet)