Translation:Mishnah/Seder Moed/Tractate Beitzah/Chapter 1/4

1:4

If one designated (literal: invited) black ones (birds to slaughter) and found white ones or designated white ones and found black ones, or if he designated two and found three, these are prohibited. If he designate three and found two these are permitted. If he designated that they were inside the nest and found them outside the nest, behold, these are prohibited. But if there are only those particular birds (that he designated i.e. he designated white ones and he found white ones) these are allowed.