Akgmrw62
Songster
Good descriptions. No e of these looked like my buff orphs as chicks. I have sapphire olive eggers, Americanas and sapphire gems from Hoovers and none looked like your 10 either.Black chicks with headspots will be barred so barred plymouth rock, cuckoo marans, or a barred egger. Plymouth rocks have yellow skin. Marans have white skin (and all but the cuckoo will have at least some feathering on the legs).
Brown leghorn are the classic chipmunk striped chicks with ancient Egyptian eyeliner.
Yellow chicks: white leghorn, California white, amberlink, buff (any breed, look more gold). Not sure what the amber link looks like as an adult, but the white leghorn has Yellow legs and the California white has a few dark spots in the feathers.
Rhode Island red, New Hampshire, and the rainbow all are red toned as chicks. RIR is redder than new Hamp (almost orange). Not sure on the rainbow, but leg color on the RIR is also yellow (looks closer to orange on the chicks)
Ancona chicks are Yellow with black back and a black snipe on the forehead. They'll feather in black backed with white everywhere else and gain the mottling in the 9-12 week moult.
Deleware and silver lakenvelder are Colombian marked (lighter than wyandottes and light brahmas), so grey and Yellow as chicks, feathering in with black tail, ring around neck, patchy white elsewhere that clears as they moult for adult feathers. Lakenvelder have a long slim body similar to the shape of a leghorn and deleware are built rounder, more like a Plymouth rock.
Black chicks, white breast/belly: australorp, black jersey giants, black sex-link, French black copper marans, midnight marans.... australorp has white skin, giant has Yellow, black copper marans has feathered legs, midnight is darker (especially around face), sex-link will eventually pop some red/gold around the face/neck as will the marans.
Blue: can turn out blue, black or splash (white with grey-black "finger prints" randomly spread about). Both blue and black chicks can look black and change as they grow. The blue tones start to play with your eyes. Now they're grey, now they're black.
The assorted types of Eggers have so much variation that you'll likely have to wait for eggs to determine what they are.
Many of the Eggers, including Americanas have beards and muffs. The other breeds in that list do not. Many also have pea combs and the other breeds listed do not. All the non-egger breeds have straight combs, but so can the various Eggers. Any of your chicks without straight combs are one of the Egger types.
I think #8 is a silver lakenvelder, I'm NOT seeing any brown leghorns, rir, NH, or rainbows, buff orps, or Ancona.