Wow, all this talk of big dogs and here I am with probably the smallest male Vizsla ever. lol. At 16 weeks he was right about 20 lbs.
His breeder told me he would be on the smaller side. So, I don't expect him to get to the average 55-65 lbs male Vs normally get. I expect him to end up around 45lbs in the end. It doesn't bother me, though. I don't care much about what size he ends up being. I care about how he tracks and points birds and his temperament. His daddy is a Master Hunter and his mom is one test away from her Master Hunter designation. He was pointing wings at 9 wks right when I brought him home and has been retrieving his toys since then, as well!
As far as eating, when he was really young, he'd eat without leaving his bowl. Now that he's a little older and more energized, he gets distracted and wants to play. He'll literally take off from his bowl to find a toy, grab it, throw it around a bit, then go back to his bowl. It's like while he's eating he's thinking "oh, I have toys to play with! Let's find one!". Then while he's playing he's thinking "Oh, my food. Let's go eat it!". It's funny how fast he goes from one to the other.
He'll do that a few times before his food is gone, or he's gotten his fill. Sometimes he just can't stay away from the toys or stop trying to play. So, I will have to put his food in his crate with him. He's starting to learn that once he finishes eating, he can come out. Smart boy.