Bees on the ground

So I noticed yesterday I had a dozen bees clinging to blades of grass and not really into moving that much out behind my hive. They were quite lethargic. I’ve noticed a bunch of dead bees below the hive too and the odd one or two on the landing board which I think is normal as they move the dead bees out of the hive. It’s the ones out back on their flight path just before getting back to the hive that have me wondering. Is this normal?