What's new vs last time: these use the proven birder-humor concepts from the playbook instead of generic lines, and every bird is drawn to be species-accurate (real crows, a dark-eyed Barred Owl, an elegant Great Egret). Bird Nerd is the anchor, done in our own script.
Previewed on the garment color, not isolated. For production I regenerate each keeper at full print resolution and key out the background to a clean transparent PNG, then publish to WooCommerce (and Etsy) via Printify. Tell me which to stock — and any copy/color tweaks — and I'll expand the winners into a full range (more species through the same mechanics: "Who Cooks For You" owls, more collective-noun jokes, more puns).