Some of the earliest pollinators we will see in the garden are Mason Bees. Mason bees are not aggressive and have different nesting needs than honey bees. These solitary bees make their nests within naturally occurring gaps and cracks using mud to build their nests in a fashion similar to masonry, which is how they got their name. They are among the first to emerge after a cold winter and help to pollinate flowers for fruit and nut trees and other fruit bearing plants.
Now is a great time to support Mason Bees in our community. You can make many different types of housing for nesting bees and some options are available for sale online.
If you want to find out more about Mason Bees:
https://nystateparks.blog/2020/07/07/the-wonderful-world-of-mason-bees/
https://bestbees.com/2022/06/03/mason-bees/
Building Mason bee houses: