Mrs. Greenberg is Beasley, my Cockatoo's, companion. Mrs. Greenberg is a Peach Faced Lovebird. Yes indeed, there is quite a size disparity, yet Mrs. Greenberg (who I suspect is really a Mr., which REALLY complicates things) regularly grooms Beasley's head feathers and crest. Beasley waits for Mrs. Greenberg to toddle out of his feed bowl before he goes for a bite. His food bowl is more than big enough for Mrs. Greenberg to disappear into in search of bits of crumbs that Beasley has pulverized with his much bigger beak. They sleep next to each other sometimes in the afternoon. Both of them all fluffed up, Beasley with one foot folded up into what is left of his chest feathers. Who would have thought a Cockatoo and a Lovebird would be friends, chums, cagemates? Although Mrs. Greenberg has her own cage, she is only confined there at night. In the morning, I take the cover off her cage and out she comes. She is small enough to slip in between the bars of Beasley's cage - and the day begins for the birds.
Here are a few pictures of Mrs. Greenberg perched on my leg while I type on my computer keyboard. I put my feet up on my desk and Mrs. Greenberg makes herself right at home.
Next, a few pictures of Beas and Mrs. Greenberg. I posed them on the back of my desk chair. They were very suspicious of what I was doing, so there are no fluffing and going to sleep postures, so you'll have to use your imagination.