Isla isn't a "rare" name, look up
Teale, on the thing it says its rare on the usage. as you can see it says Usage: English (rare). the names with the (rare)s. also you didn't use the link for your other child. I'm just telling you so you know, I'm not trying to be super strict. Your more than welcome to fix it if you want. Maybe I wasn't clear, and it's my fault, I'm sorry.