Just a FYI, gents. I recently read a good article on hornets. It stated that there are 2 main types of hornets - the black ones with the white face, - and a bigger, nastier orange-ish yellow variety. That one is the European hornet, also called the "great hornet". ( it has big orange-colored eyes/face ). It's said to be more aggressive than the black / white variety, 1 1/4" to 1 1/2" in length. The way the article said to identify what variety of hornet ( without actually seeing them ), is to look at the nests. The black / white hornet is said to build a nest that appears light gray-ish white in color. The bigger, nastier great hornet's nests are said to be more yellow-ish gray in color.
FWIW - that's what the article on hornets said. I've seen both types in person - the big orange-ish yellow ones were a full 1 1/2" long and made 8 of us camp members run for our lives after we tore off a big shed roof at the cabin. Nest was in a corner where the rafters came down to meet the cement blocks and continued down into the block hollows. They will chase you. Scared the sh** out of all of us !!