Apparently not all birds can fly.
United Airlines recently denied a woman's request to have her emotional support peacock travel with her.
The unidentified passenger claimed to have a second ticket allowing her to bring the pet on the flight departing from Newark Liberty International Airport, but the animal never made it onto the aircraft.
The airline is standing by its decision amid mixed chatter on Facebook.
"This animal did not meet guidelines for a number of reasons, including its weight and size. We explained this to the customers on three separate occasions before they arrived at the airport," United said in a statement.
This comes on the heels of Delta Air Lines' looming policy change requiring flyers to submit a veterinarian health form and immunization records for emotional support and service animals to the airline 48 hours before their flights.
The new rules, effective March 1, are aimed at reducing the amount of animal-involved incidents including defecation, urination and attacks, which have increased by 84 percent in recent years.