chickengirl72
Chirping
The distance varies by the breed. It would be using 1 known layer as a guide and then averaging out afterwards.
John has a very good write up, I am going to find it right now..
http://metzerfarms.blogspot.ca/2011/03/how-do-i-know-which-of-my-ducks-are.html
Thanks for the writeup, that's great! I checked a few of the ducks yesterday, and there was definitely a difference between my older duck who i know is laying and the younger ones that i'm trying to figure out. There's definitely a learning curve to this, but i'll keep working on it.
