Hackberries and birds

[Howieh]

I've got a hackberry tree in my back yard with thousands of ripening berries on it and if I can figure a way to prevent the robins and starlings from devouring the berries before mid August I expect to see grosbeaks and waxwings dropping in for a snack! Does anybody know where I can get robin and/or starling repellent? and FWIW I still have at least two female and one male hummer but still no sign of the fledglings.

[Shortsighted]

I've never actually heard of a repellent for Starlings and Robins.
Perhaps a very large model of each species mounted nearby might
discourage lingering. Smith & Wesson makes a universal deterrent
but they have not (thankfully) achieved popularity in the civilized world
and are therefore best left in crazyland, where you might be able to pick
one up and toss it in your shopping basket at any community gardening supply.

How big is a Hackberry? Could you construct a frame over it and
cover it in fine-mesh netting? I guess you can tell that I'm as ignorant
about this issue as ... well, most other issues. I suppose you could
goggle mitigation of fruit crop damage from birds and perhaps glean
some insight from the pros. I'm a big proponent of fireworks but that
might not have utility for various reasons but it can be a lot of fun.

[Howieh]

Thanks Shortsighted, but I'm worried about you - you gotta get out more!! Anyway, so much for the secret hackberry stash; a robin showed up earlier today thinking he was Joey Chestnut and the berries were hotdogs, but there are so many that it will probably be weeks before he (and his friends) can finish them so I'll keep watching and hoping. They are getting very colorful and even the hummingbirds have taken an interest, but after finding out they can't penetrate the skin the hummers usually return to the feeder for an easier feast. I can't believe Chestnut has his own wikipedia entry:

https://en.wikipedia.org/wiki/Joey_Chestnut

[Axeman]

Use a scarecrow modelled after Shrek.

[Howieh]

Use a scarecrow modelled after Shrek.

Too late, they were all gone more than 3 weeks ago and there must have been several feeding frenzies because many of the thin upper branches are broken, presumably from the weight of the perpetrators!