Looks like a Black Australorp, however I suppose it could also be a Jersey Giant as the two breeds (when originating from a hatchery) are often confused. Black Australorps have white foot pads, Jersey Giants have yellow.
Wyandottes have rosecombs, your bird has a single comb. Langshans have feathered shanks and should have longer legs. Also, Marans tend to come only in Cuckroo when from a hatchery.
Wyandottes have rosecombs, your bird has a single comb. Langshans have feathered shanks and should have longer legs. Also, Marans tend to come only in Cuckroo when from a hatchery.