My Blue Swedish / Mallard In-Breeds have been laying more eggs than I can incubate anymore. I cannot guarantee each egg is fertilized, however most that have gone into my incubator have indeed developed blood vessels. I'm located in Trumbull in Fairfield County Connecticut. I'm willing to deliver if within 10 miles otherwise pickup will be necessary. Selling Each Egg for $1, multiple eggs are up for sale. Eggs are stored at room-temperature to slow development and are collected every morning, increasing the odds of a successful hatching. I can send a picture of my ducks so you can have an idea of their markings. For any other questions please feel free to private message me.