Cambridge reading bridging book book bands

[cafco]

My DS1 Yr2 has recently had some Cambridge Reading Bridging Books as his home reading books. I have seen on Cambridge University website that these books are aimed at low ability readers. Does anyone know what book band level these are? The titles were Wrigglebottom, Granny's Teeth, The flying Football, Apples, Nibbles, Drat that Cat, not necessarily in that order.

I'm not sure how accurate my list is but I have

Granny's Teeth as Green
Drat that Cat as Orange
Apples and Nibbles as Turquoise

I don't have Wrigglebottom or Flying Football
Sorry! ( and someone might have a more accurate list, mine seems to be cobbled together from different sources!)

Thanks Snowball, that makes sense as I remember there were two sets of three, each one getting progressively trickier in the set. He seems to be jumping all over with his book bands at the moment, I'm not sure if this is to develop his confidence or for some other reason but we have parent's evening later in the week so I will no doubt be able to get a clearer picture then