I don’t know when this was added but can we have an “Unknown” after a while in a trap it’s hard to know if a Hedgehog is an adult or a juvenile and where is the crossover anyway? i.e I doubt apart from size (which I would just guess anyway if is an adult) how does one determine the difference?
Kia ora,
Thanks for getting in touch. I see what you mean - Life Stage is an optional field, so technically you could leave it blank, but on the app at the moment it forces you to choose one or the other. I’ve let the dev team know, and hopefully it will be fixed with the next release 
Ngā mihi,
Sarah
(she/her)