I’m not sure one could call cows and cattle egrets friends. When cows graze, cattle egrets snaffle bugs stirred up in that process, but I don’t know of anything the egrets do for the cows in return.
However, this photo has a friendly feel to it. I picture the cow saying, ‘So you can fly, right? Could you teach me how?’ The egrets look suitably nonplussed at the suggestion.
Feel free to suggest your own caption in the comments.