Bumble-bees or something like that...

We have been worried for our apple trees and other fruits and berries because it has been so cold and no little workers had been seen in flowers.
So we bought a nest of little creatures who are supposed to do the work needed.
The nest came this morning, and we put it in appletree, waited for an hour before opening it.That was told to be done, that the animals have time to recover from the journey. There is a queen and some workers.
We sat down to watch what happens after we opened the gateway.. and we saw four little animals to come out, fly a while in place and then they begun to visit flowers.! We are so pleased! First picture shows the nest and in the second you can see two little things watch out before flying away. We saw them come back, too. So they know where is home!