When do hey grow feathers?

[KWAK]

6 day old pigeon, no feathers yet at all. (no pin feathers).
when do they start to grow?

 

[deerman]

after 10 days

 

[KWAK]

Thanks D!
Do you have any idea what s/he might look like when it grows feathers? the dad is a clean legged swallow (white body, brown wings) and the mom is a normal colored archangel?

 

[Mary Of Exeter]

By normal colored, is it a black wing bronze/gold, blue wing bronze/gold, etc?

 

[KWAK]

blue wing bronze/gold