Am I overreacting with biosecurity?

[Yuilethu]

You can never overthink biosecurity.
But you started this discussion saying you had hens but then said they still needed heat.
So you didn't have hens, you had baby chicks. Often at that point, one isn't sure if they have males or females.
Hens are female chickens over one year of age. So you didn't have hens.
A bird can be NPIP meaning certified free from pullorum or typhoid. It could have dozens of other diseases, but on the plus side, it

Uh oh, now I look silly. I meant I had gotten 2 pullets. I was annoyed about the situation and hoping for feedback and didn't double check my wording. They're still pullets, unless there's a word for birds that haven't started laying yet, but are outside in the coop and run.

But, situation is all sorted, everyone is visibly healthy.

 

[ChickenCanoe]

That's cool. I'm glad it worked out.