I got a new pair of grey singers

[HoangQuan]

My friend has just gave me his pair of grey singers. He used to keep them in a big flight cage with a bunch of strawberries but now he must give them away since he wanna start breeding the strawberries again; so I dropped by his place yesterday and took them home.
I don't have much experiences about these guys, I don't even know if they're a real pair or not since they never ever laid any eggs when they're in my friend's place. I saw some pin feathers in their face and breast, is that signs of molting? Will they go through a heavy molt like gouldians, or they will molt like canaries?
anyway, here's the photos. The male is actually a hybrid(male green singer x female grey singer).

The female:

Now I'm feeding them what I feed my other finches, plus meal worm and ant eggs.
They're 2 years old now, hope I can do something right and will hear their nice song soon.

[Mynard]

Lovely

[cindy]

Beautiful, congratulations!

[cartel]

I like the look of your male Quan. Your female also looks like a hybrid to me aswell.

[HoangQuan]

I like the look of your male Quan. Your female also looks like a hybrid to me aswell.

Yeah I can see the light yellow in her wings too.

[lovemyfinch]

They are very pretty, congrats
From my experience singers do not molt like gouldians, so hopefully it won`t be long before you can tell us that you have eggs

[debbie276]

Very nice!

[arielbergmanfinch]

Very nice birds!!, If I'm not wrong because they are hybrids unfortunately they will never breed because they are not fertile

[jonvill]

I understand these hybrids to be infertile.

[6finchfriends]

congrats! Even if they are infertile they are still lovely birds! Do they have a pretty song?

[nelloyello11]

Beautiful birds!

[HoangQuan]

They have a quite pleasing song, very nice.
and I've read somewhere that hybrid between grey x green singer are still fertile.

[L in Ontario]

Congratulations on your new Grey Singers - super!!