There is a new thing out now - some form of EID reader - that does everything on the computer for you. It is a handheld device and you just enter all the information about the animal into it in the barn while tagging, worming, hoof trimming, etc. It scans a special ear tag and can tell you everything you entered about the animal right there in the barn.

The downside is that it costs a couple thousand dollars.

The upside is that you don't have to catch the sheep, check the ear tag and then go check your paperwork.

Wes Patton got one and loves it. He showed us a demonstration at the seminar at his ranch last year. Best part for me would be that you just aim it at the sheep within a couple of feet and it reads all the stats. You do have to do the initial work of inputting all the info into the computer but then the machine does it for you. Of course, Wes has several hundred sheep, shows and sells breeding stock all over the country so has a use for it and can afford it. It would be a write off, but I can;t afford all the write offs I would like to buy!
I just use a record book for breeding dates, lambing dates, # of lambs born, and problems. I usually write that stuff on the calendar too as well as vaccinations, etc. I keep all my calendars so I can refer back if I need to do so. Right now I have calendars going back to 2018. They give me a secure feeling. I don't like keeping information on the computer because I can find it easier looking through papers in a file folder. I may be in my Prime, but I am nit a computer person. I do color code my lambs as to who their sire is. I use specific color tags for each ram. I don't have anything yet to ID the dams, but having the ewes color coded is useful. It is surprising how often one set of lambs/ewes look similar on the field and then you see the colored ear tags and say "Oh yes, those are Lewis lambs - I recognize a particular thing about them". Otherwise, I keep all my registrations in plastic sleeves in a loose-leaf binder with tabs on each registration page with the ear tag # to help me find them fast.