Baby crow at 4 weeks or something else?

[Dimondel]

Is this some sort of baby crow? It’s a bit early, so I’m worried it’s something else. Judging by the comb size and colour, it’s definitely a boy. The breed is Belgian duccle.

 

[nuthatched]

Definitely a crow, some are early bloomers.

 

[Dimondel]

Okay now both the babies are doing it