Get the cluck out of here. Flocks of folks are flying to Walmart for an unlikely duo to celebrate National Chicken Month — the limited-edition rotisserie Chicken Purse. The Arkansas-based chain first rolled out the limited-edition bag on September 1, pricing the purses the same as the store’s real chickens at just $5.97.  The purse, which some shoppers are calling the “Cherkin” — a cheeky play on the Birkin — is available in two “flavors”: traditional and lemon pepper. Both totes are shaped like its iconic rotisserie chicken packaging with the logo, nutritional facts and all. Each is made from…