Well, these bees hang out at that hole, and they wait for that mother to fly away, they go in, eat the egg, and lay their own egg there. So they don't do any work.
Šīs bites pavada laiku šajā caurumā, gaidot, kad mātīte aizlido prom, tad tās ielien caurumā, apēd oliņu un iedēj tur paši savu oliņu. Tās pašas neko nedara.