Aww they are getting so big! Both look absolutely adorable!
That coop looks great! I bet your girls will love one like that!
I get them sometimes. My black from paints get those lighter toe tips all the time. A lot of the time it darkens to black as they get older though, your cuties may or may not too.
As for the odd conjoined toes that is a pretty common thing that can pop up. It can be genetic but it can also be from incubation. The polydactyly gene is very finicky and temperatures in early incubation can really affect how the toes form.
I actually saw firsthand this phenomenon in the last 4 chicks I hatched. 3 of the 4 started incubation under a broody. She wasn't very good at keeping the eggs covered, I kept finding eggs sitting next to her cold. The 4th was started in my trusted incubator that keeps really consistent temperatures. When the first three hatched I noticed their toes were much more close together/slightly fused than I'm used to. The chick that started in the incubator and was never subjected to temperature fluctuations has really nicely spaced toes. That chick and two of the ones with the slightly fused toes I'm almost positive are full siblings so in this case it seems it was very likely incubation related.
Aww such a cutie! With those very pronounced streamers and the way the red is distributed I'd be pretty positive this is a cockerel.
I get really early crowers sometimes while others may take over 6 months to start crowing. A lot of the later crowers are with other cockerels and are lower in the pecking order. Your little guy may start feeling comfortable enough to start crowing now you rehomed
That definitely looks like a little beard to me (the white one has it too).
The beard being fairly small may be due to the beard being heterozygous (only having one copy of the gene). The bearded gene is codominant so two copies make a bigger/fuller beard than one copy. When you breed together two birds that only have one bearded gene each you can get fully bearded, partially bearded, and non bearded offspring.