How do you know what could sell out before Black Friday? You just have to look at Google and what people are searching for. Google has released its top 100 most searched-for items to help you shop and save.

Bird watchers are going coo-coo over the Bird Buddy, the most searched-for bird feeder this year. It has a camera that triggers any time a feathered friend flies in for a snack. It also identifies the species and keeps a record of the birds dining in your yard.

Searches for e-bikes have been strong all year and while there are many to choose from, some brands and styles could ride out of the stores before you get a chance. And prices have dropped. I found the Bird e-bike about $120 less than last Christmas.

Searches for smartwatches like the Apple Watch Series 9 spike around Christmas. So do searches for mini projectors like the Nebula capsule projector and some from ViewSonic that are small enough to fit in a back pocket.

Google says trackers like the Tile and Apple Air Tags are popular searches this year. So are point-and-shoot cameras like the Sony ZV-1 Mark II, which are hot items this year. As far as toys go, It isn’t a Rubik’s Cube, but light-up electronic cube puzzles are being searched for. The GoCube teaches how to solve the puzzle.

And while it isn’t tech, one of the more curious items this Christmas is human dog beds. Searches are up over 1,000 percent this year.

I’m not suggesting all of these items will sell out, but they are on the lists of other shoppers. If you see a deal now, it might be wise not to wait too long.