I'm a pushover for birds of all kinds. I just like them. However, I've noticed that a lot of friends do not care for bluejays because they make a lot of noise and seem to be rude. I'm providing this little video in hopes that because of the beneficial and good things they do, if a bluejay seems disgusting, you might give them some slack once you see what they actually do that helps nature. OK, OK, all the peanuts WILL disappear when Blue Jays are around hogging them up...the little larceny-directed punks...but see if you find out that they make up for it:
Blue jays are a sort of enigma for me. We don't see them often here in the city but there were lots and lots of them where we lived up on the mountain: Mountain jays--no crest but beautifully all blue, scrub jays--no crest and mottled blue and brown which were the most common--and the occasional Stellar jays that are the big beautiful crested blue ones. And they were bullies driving the little birds away from the feeders and such. Our neighbors two parrots got loose one time and the animal shelter folks could have caught them except for the jays who kept harassing them pushing them--the vet said they would likely eventually kill them.
The mourning doves, also prevalent on the mountain, were the one bird that did not tolerate the jays and would run them while they peacefully shared the feeders with all the other birds. Jays, like all bullies, cut and run when challenged. So the jays rarely bothered the feeders.
I did enjoy putting out little piles of raw peanuts on the deck though. Within minutes the first jay would spot it and somehow got the word out because dozens immediately showed up. They would grab one, dash to the ground, set it down, pick up and put a pinon cone or something on top of it to hide it, and come back for another. One was so excited he left with a peanut and came back with the peanut still in his beak.

Fun to watch.