There are differing opinions and "old ways" of doing things, but it's becoming more popular to just copy what a mother hen does. So I also like to raise chicks with a
Mama Heating Pad... I think a heat lamp is best suited for brooding an extremely large amount of chicks (50-100+) at once. And it's so much healthier and more natural when chicks are exposed to the cooler room temperature air and only receive heat when they choose it themselves, and they can also sleep quietly through the night and have empty crops in the morning.
If moving to the coop at a very young age (1-2 weeks), I would still offer the heat source for a while longer, that's why the MHP or a heating plate is safer too. I've tried both methods and am amazed at how much easier the MHP is and seems to take all the guesswork out of what temperature to keep the brooder, and chicks become acclimated and grow feathers very quickly.
Do keep in mind that all hatching eggs are split pretty evenly between boys and girls. You can always post pics in the gender section:
https://www.backyardchickens.com/forums/what-breed-or-gender-is-this.15/
to get opinions on what you have, but the most definitive rooster traits won't appear until about 12-14 weeks. I'm also not allowed to have roos in town, so I just get already sexed day-old pullets. But one of these days I'll be brave enough to hatch my own eggs
Good luck with your new babies!
More of my favorite links if you're interested:
Start Raising Your Chicks Outdoors
You Certainly Can Brood Chicks Outdoors
Pseudo Brooder Heater ‘Plate’
How Much Room Do Chickens Need
Chicken Coop Ventilation - Go Out There And Cut More Holes In Your Coop!
