I've been looking around, trying to decide on a regular soure of images for those times when I want to add a bit of colour or illustrate a point with a picture (being worth a thousand words). I've settled on Wikimedia Commons. So, unless the image in a post is a book cover or a photo I've taken myself, it will have come from Wiki with my heartfelt thanks to the people who've built a great collection.
And the picture you're looking at? They're numbats by Gould.