If you have a good picture (own, friend's, found online) that fits this account you can contribute!
DM the picture to this account (it removes the handle), add a source, the species and an image description and after being approved by one of the mods your toot will be added to the queue.
It should look something like this (emojis and fun fact optional)
Profile picture by https://www.flickr.com/photos/angiud/
🐝 White-Tailed Bumblebee (Bombus lucorum)