Unendangered Sparrows

I know it is not for me to tell the RSPB they are wrong but IMHO the number of sparrows is going through the roof. One bored day I managed to get to 34 before they all shuffled around. Not sure why they are doing well here. Could be the ivy coated walls, could be the dogs keeping the cats to a minimum, the number of folk who feed birds round here or something completely random.

We tend not to get anything too unusual here but we do have plenty. Am I allowed to think Wrens rock?