Any idea what gender these 7 1/2 week old chicks might be?

[MSC2020]

I must apologize first for picture quality and the muddy run. We have had over 8 inches of rain here in the last 2 days.

These chickens are backyard mixes hatched by a friend. The only thing I know for sure about them is their father is an Americana. I am sure there are a lot of cockerels in the mix of 16 that were hatched. Any idea as to what gender these may be?

 

[The Happster]

4 is male.
Rest are female, although I'd keep an eye on 7.

 

[LadiesAndJane]

All look like girls except number four.

 

[TheOddOneOut]

4 and 7 are male.

 

[MSC2020]

Thanks all for your responses! I too think 7 is a male. I have seen him in a “standoff” with another suspected cockerel more than once. Glad to hear that the consensus for 1,2,3,5 & 6 seems to be pullet as they are our favorites in the bunch.

 

[chrissynemetz]

I'm thinking #4 definitely cockerel
#7 possibly/probably cockerel.