North Hampshire

Observation - North Hampshire - UK and Ireland. Description: From the size in field guides, this looks OK but I can't see the dark patches on each side of the body. Is it a female? It is more white than yellow as shown in the guide.

From the size in field guides, this looks OK but I can't see the dark patches on each side of the body. Is it a female? It is more white than yellow as shown in the guide.