I'll be honest, I think three weeks is too young to put them out in the coop. I am also in the Bay Area, in the SC Mountains, and it's still in the fifties at night here. Lat week it dropped into the forties. I have a little golden wyandotte and put her outside at six weeks.
I have noticed...
To complicate things the cochin on the right in the last image (mango) is a really slow developer. S/he didn't have feathers at all for the longest time after Harriet (cochin on the left) was already fully feathered.
I have two partridge cochins who are about ten weeks old. One is growing much faster than the other but both have waddles and large combs. Are they both roosters? I also have a mottled houdan that I got from a straight run. S/he has a really long tail so I've suspected possibly a roo...
I've had a few chickens for a couple of years now but we substantially increased our backyard flock this spring to fifteen. The youngest are still only seven weeks.
We have:
1 Buff Orpingotn
1 Barred Rock
4 Easter Eggers
2 Delaware
1 Buckeye
2 Partridge Cochin
1 Golden Wyandotte
1 Black...