which hens are laying?

Flock is
2 wyandotte lacewings (old)
1 RI red (old)
1 americauna (old)
1 golden sexlink (old)
2 barred rock (young)
2 RI red (young)

I know at least 1 young RI and BR is laying as they've been ranging outside the chicken yard and laying outside the coop. Some days there are 4 eggs - 2 outside, 2 in coop. I think that the other 2 young hens are also laying... which accounts for all of the production - 4 hens should lay 6 eggs every 36 hours, 12 eggs every 3 days when in full prodcution. 4 hens would have laid 36 eggs in 9 days. None of the older hens is laying, all are eating and taking up space. I suspect as the diurnal cycle gives more light that the lacewings will begin laying again.

Spring chick order (currently) planned as: (RI Red and BR should be majority of flock)
3 RI Red
2 silver laced wyandottes
3 americuana
1 gold laced wyandotte
1 Barred Rock

(5 RI Red, 3 BR, 3 Americauna, 2 S.L. Wyandotte, 1 G.L Wyandotte - 14 hens)

culling of 2-3 older brown egg layers will happen by the equinox - will determine which hens are laying and decide then. I think the americauna will be a light producer this year, but occasionally blue eggs will show up. I've got a soft spot for that hen - sentimental attachment to the chicken that crosses the road.

Winter 2009-2010 should have 4 18 month old hens, and 10 young (9 month old) hens. Production of about 4 eggs every 3 days from the 18 month hens, about 16 eggs from the younger hens - or a bit over 3 dozen eggs per week. Summer 2010 has 14 hens at peak production - should be over 2.5 dozen eggs every 3 days, over 6 dozen per week. No chick order in 2010 or 2011 - let flock drop to new chicks in 2012 or 2013 to begin replacing 4 young bird - 3 RI Red, 3 BR in 2012 or '13.