My summer raspberries have been attracting both adult and
young Jays for a few years now (along with Blackbirds obviously). No change as
far as I can seen in numbers this year. We always reckon that there are enough
berries for both the birds and ourselves.
Interestingly, neither Jays nor Blackbirds feed on the
autumn raspberries which fruit mid-August onwards (approximately - probably
later this year).
Ian Harrison