Hi, I'm new here and have been scouring the web for the info I'm looking for. I've also been on hold now with the US embassy for 1/2 hour, so I'm hoping you all can help me out?

My husband & I are both US citizens with US passports, currently living in Canada on a 3-year work permit. We had a son in Canada (1 yr old), making him a Canadian citizen- he has a Canadian birth certificate and Canadian passport. He also has a Report of Birth Abroad, and is a US citizen through us- so he has dual citizenship. I've traveled with him by land 5 times to the US, and used only his birth certificate- no problems there. We're now taking our first flight since he was born, in a week! He has a Canadian passport since I had read that you (dual citizens) are supposed to use the passport of your residence, plus we had the Canadian birth certificate first, and it seemed easier. And I thought But just last night I was reading that US citizens need US passports, and it seems that his Canadian passport may not suffice?

Will we be ok using his Canadian passport & US Report of Birth Abroad, or do we need to rush & expedite his US passport (which I'm not even sure we can do- seemed like that was fairly uncommon and only done in emergencies, here at the Embassy). Please help, anyone been through this?? Thanks!