Have you heard of Ovo vegetarianism? Its where you eat eggs but not dary or eggs. 
Hi! No I have not heard of that. 
Ovo vegetarians also call themselves eggetarians. 
That's interesting. What other foods do they eat besides eggs? 
Well they prefer cage-free or free-range eggs. 
I know a few Free-Range chicken farmers. It is a more humane way to farm livestock.
Free-range eggs
Free-range eggs are eggs produced from birds that may be permitted outdoors. The term "free-range" may be used differently depending on the country and the relevant laws, and is not regulated in many areas.
Eggs from hens that are only indoors might also be labelled "cage-free", "barn", "barn-roaming" or "aviary", following the animal happiness certification policies, also known as "happy chickens" or "happy eggs."
calves. Other concerns include the standard practice of separating the mother from her calf and denying the calf its natural source of milk. This contrasts with the industrial practices surrounding egg-laying hens, which produce eggs for human consumption without being fertilized. Ovo-vegetarians often prefer free-range eggs, that is, those produced by uncaged hens. Many ovo-vegetarians refuse to eat fertilized eggs, with balut being an extreme example where the egg has developed.
Some vegetarians are lactose intolerant and have a casein allergy,