I'll take a stab at it, snrub.

First pic, female RES.
second and third pic, male northern BG.
fourth pic, male CNBG.
fifth and sixth pic, male hybrid GSF x BG. Or BG x GSF.

Oops....that's what I get from posting early.

fifth and sixth pic, RES x BG...or BG x RES. No GSF that I see.

Last edited by sprkplug; 06/25/16 06:14 AM. Reason: corrected mistake
"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.