The fine for shooting a blue heron can be as high as $250,000.00
Blue Heron's are pretty well protected by the law so if you're caught shooting a heron and you kill the heron then you could get a huge fine.
Not only the fine but you might also face up to 6 months to a year in prison for your first offense of shooting a blue heron.
So it's not recommended to even try shooting a blue heron especially in areas that heavily regulate the law about shooting the blue heron.
The judge doesn't go very easy on people who break the law when shooting blue herons or other protected birds.
In some locations the fine might be lower and only be $1,000.00 to $10,000.00 and a few months in jail but in some places they prosecute you to the highest extent.