Skyeknight
Songster
I do not find 5 weeks that long. Sometimes you see very big nests, which eggs may or may not be from the broody. Can't find a good source at the moment, but it seems Red Junglefowl lay about 5 to 15 eggs? If somehow the first eggs are infertile than after 5 weeks the last layed eggs are only just hatching at that point.I've seen some posts about very stubborn broodies - 5 weeks, etc. (without chicks, on or off fake eggs)
I also wonder if there is a difference between first time broodies and more experienced mothers in terms of when to give up.