Why are blackbirds attacking a jay in my back garden?

Question

For the last couple of days two blackbirds have been having an ongoing ruckus with a jay in back of my house. The main site of the dispute seems to be my balcony as I've several times seen a flash of black and blue grey wings flying off as I go into the kitchen.

Is it over territory or is do jays steal other bird's eggs and/or young?

Answer 1

territory and nest protection I'd say

Answer 2

yeah, they want the eggs or chicks. Canabalism.

Answer 3

yes they steal the eggs, i saw a jay attack a small bird and eat it the other day so they do eat babies, i was shocked though it was horrible....

Answer 4

The blackbirds are jealous of the Jays feathers been blue.. same with any bird the brighter the coloured feathers, the more prone they are to attack from other birds.