Parthenogenesis isn't something to be believed in or not believed in. It's a scientifically tested fact. You can disbelieve it - but your disbelief doesn't change that it is very real. It happens most often in species of reptiles/insects/amphibians but there have been well documented cases of it occurring in -several- species of bird. We're not talking about anecdotal evidence that someone's buddy heard from someone's sister's uncle's neighbour's poker buddy's dog's vet. We're talking about research performed by biologists and geneticists. It's not even a process that's terribly odd. There are at least two species of reptile that are literally entirely composed of females because they ONLY breed through parthenogenesis and stick insects (which I breed) very frequently breed by this method. Mammals are actually rather the odd-branch-out in this respect - and in lab settings even human embryos can be created by using parthenogenesis. It's not make-believe. It's not pretend and it's not a fantasy story or a dream someone had. It's basic biology that can be repeated and tested. Not believing in it is a bit like not believing that the earth is a spheroid body or not believing in gravity. It is a thing based on observation, evidence and testing that we know to be true.