I know that cows emit methane through eructation and through their manure.

I also know that poultry contribute to global warming through the emissions of ammonia through their manure.

Does poultry manure also emit methane? Does cow manure also emit ammonia and nitrous oxide?

When researching how poultry contributes to global warming, I only find information about ammonia volatilization. However, nothing about how their manure also emits methane. I know that they dont eructate methane since they're not ruminant animals.

When researching how cows contribute to global warming, I find information about methane production in their stomach and from their manure. Nothing on ammonia or nitrous oxide.

So poultry emits more GHGs than cows because it isn't a ruminent animal. Manure emissions are same for both animals. Right?