I put one of those cheap yellow plastic pollen traps with the flip down door on one of my hives. Never trapped pollen before and was interested to see how it works. I put the trap on in the morning with the door open. I went back at night and dropped the screen door they have to crawl through and left it that way for a day and a half. When I pulled the basket, there was approximately 100 dead bees in it along with a lot of pollen. Is it normal to have that many dead bees in the pollen basket or does that just happen initially as they try to figure their way back into the hive. I hate losing that many bees to just fill a 4 oz jar.