On a kids' nature show, I heard that puffin chicks are called pufflings....probably @Alaskan knows this already, since there are puffins in Alaska?
Anyway consequently I started calling my youngsters the Pufflings...they went out on adventure today. Usually they don't leave the run when the hens free range, but today they ventured a bit further into the yard, Beldar taking the lead and the girls sticking to him like glue. He hasn't crowed yet. 7+ wks.
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Yep, there are puffins on Alaska... lots close-in to my house too.
But as to what they are called....uh...