Congrats on finishing the coop!
In the spring I ordered 4 chicks from www.mypetchicken.com
and all 4 survived the trip just fine!
ship one day old chicks overnight and can do small orders. But day old chicks are too small to go straight into the coop. The mypetchicken people also can check the sex the chicks for you with 90% accuracy (so you get only hens). It gets cold in the bronx so remember to only get the cold hardy breeds.
From: Cynthia Floyd <[address removed]>
To: [address removed]
Sent: Tuesday, July 2,[masked]:48 PM
Subject: Re: [Just-Food-City-Chicken-Meetup-NYC] looking for baby chicks