Bull or Heifer?

I have 5 calves on the ground so far

3 confirmed bulls
1 confirmed heifer
1 unconfirmed

Of the 3 bulls, they are all out of Houdini.

Lil' Miss + Houdini = will now be know as 84 (bull)
Nicky + Houdini = will now be known as 812 (bull)
Jenny Belle + Houdini = will now be known as 872 (bull)
Ramona + Sagebrush = will now be known as 13 (heifer)
Blackberry + Houdini = still unknown, either will be known as 86 or 14

872 didn't have a great day. It snowed last night and was pretty chilly today (low 30's). He was fine this morning, but when feeding the cows this evening he didn't come up. In itself is not unusual, but mom kept calling for him. So we went looking. Found him shivering in the weeds, got him up and got his mom looking and she came running for him. He's pretty skinny, but also not even 48 hours old. Mom has one bad teat, but 3 good ones. So, we watched real close to make sure he was getting on the good ones to nurse. Hard to tell 100%, but I'm pretty sure he's eating well. With what I hope is a full belly of milk we left him for his mom to take care of. Hopefully he'll get going a little better.

No new babies, getting worried the last 2 AI'd cows might not have took (Paris and Strawberry Fields). They aren't looking very close. Oh well, a Dr. Seuss calf is pretty sweet too.