X-Small FlightSuit (Bird Diaper) w/Leashette plus Flightliners See SIZE CHART photo under pictures on left (roll cursor over photo for a clear view of alphabetical list of bird types and sizes) X-Small size fits Bourke Parakeets, English Budgies, Lineolated Parakeets, and most Lovebirds. Cool, colorful & comfy; great for travel. Veterinarian approved. Think outside the cage; playtime without the mess! Happier birds--happier owners! NOTE: ideal FlightSuit candidates are hand-tamed and used to being handled.