Hello from London! Monday puzzle: can you find the theme in the following images?

If you were clever enough to figure out the puzzle, you’re clever enough to donate to the Kickstarter for BuyingPoultry:

BuyingPoultry.com will take the guesswork out of choosing the most high-welfare and sustainable products. Our free buying guide—available via the web and on your favorite mobile devices—is going to list every poultry producer and poultry certification (organic, free range, cage free, etc.) in America, and will tell you how they treat their animals. With BuyingPoultry.com you will be able to see who’s best and who’s worst in the United States, and who’s best and who’s worst in your local grocery store. We’ll list what each company can do better and make it easy for you to add your voice to the cause.

Most people eat chicken without knowing that poultry endure the worst conditions of all food animals. Help BuyingPoultry get the word out by supporting their campaign, and help yourself find ethical poultry in your area!