Scientific name is; Anas platyrhynchos domesticus Blue Swedish is a medium sized duck that weighs between 6 1/2 to 8 pounds; the male usually weighs more than the female. Blue Swedish ducks are very calm and make good ducks for beginners and will go broody. Blue is the standard but there is also Black, Silver, Yellow and Splashed color patterns. Standard specifies that the outer two or three wing flight feathers must be white. The Blue Swedish may also be crested. The Blue Swedish duck is considered a dual-purpose duck for both meat and eggs. The Blue Swedish lays mostly white eggs, but may lay an occasional blue or gray tinted egg. Thank you to JenniferK, Ducklover1, and QuailQT for permission to use their photos.