I love scientific illustrations so I had to share this beautiful book ...
Scientific Illustration | heracliteanfire: The Nests and Eggs of Birds Of...
"Nests and Eggs of Birds of The United States" from Thomas G. Gentry
I am sure lots of you already know about this book, but still I had to share the link. If you click on the picture, it will take you to the full size and if you click on the link below the picture "Project Gutenberg", it will take you to the ebook.
There are other beautiful pictures, which can be used as inspiration for coloring stamps, color combos, or even be used as a feature in a card.
Enjoy!