The reason i asked is because i have a horse pen no horse is using it so i used it as a duck pen and well when it was dark me and my dad well and mother where out sledding and i went to check on my ducky and he was gone i looked in his house and no duck he was gone my heart SANK big time! So i alerted my dad of it and at the time our neighbor named david was taking his kids sledding and he was coming down the drive way n his truck! And i heard my little ducky quacking so i told david to stop his truck and from up at davids house his hunting dogs came running! And i heard my ducky quacking i ran to him to get there before the dogs found and killed him i found him in the neighbors horse feild going toward the pond so i scouped him up!The dog where snapping at is legs and he was hissing at them and got out of my hands and beat them dogs he sent them running with tail between there legs i saw him get some dog skin in his mouth and he twisted and pulled and left a whelt on the dogs! And i scouped him up again!Oh and in the horse feild there were two horses that almost trampled him! And thats why i asked the question he had to fly/jump over a 5 foot tall fence to get out!Or he slipped through a hole in the fence but my question is how high can they jump/fly?