I guess what really bothers me is that you're treating your husband's word as law. Marriage is a partnership, as gryeyes pointed out, not a dictatorship. I've been married 25 years to the same man and we both respect each others' hobbies, whether it's my sled dog racing, his cars or airplanes, his hiking, our martial arts, my chickens, etc. We come to a consensus on most things and even when we've agreed on something (he wanted only one cat, for example), sometimes life gets in the way and I got adopted by my neighbor's cat, so now we have two. Life happens.
As others have said, if he's really upset about two little chicks, he's going to get upset fairly often. How is he at handling the big stuff if two little birds are ruining his day and making him mad? I mean, I went from 6 chickens to 25 birds (it's that chicken math thing
)-- it shocked my husband, but he got over it when we butchered the cornish crosses. Now he's asking when we're getting eggs.
He knows we're butchering the roos, so he's good with maintaining a flock. And he knows we're going to get attrition.
My concern is that this could be the sign of something far more ominous. I've never allowed my husband to dictate to me what to do with my pets. Not that if he did try to dictate, would it do any good. He knows that and we're both good with that. I respect his hobbies and he respects mine. That's really key in a relationship.

As others have said, if he's really upset about two little chicks, he's going to get upset fairly often. How is he at handling the big stuff if two little birds are ruining his day and making him mad? I mean, I went from 6 chickens to 25 birds (it's that chicken math thing



My concern is that this could be the sign of something far more ominous. I've never allowed my husband to dictate to me what to do with my pets. Not that if he did try to dictate, would it do any good. He knows that and we're both good with that. I respect his hobbies and he respects mine. That's really key in a relationship.
