So I googled "Items on this Mac only" and followed Apple's directions and now they're on my phone. Don't know if I have to do this every time, but it's easier than Air drop. Thanks!
About the status bar in Photos for macOS
Photos for macOS provides detailed information about your photo library, including how many photos and videos you have, when your library was last updated with iCloud Photos, and more.
Find the status bar
To see how many photos and videos are in your library, select Photos, click Moments, then scroll to the bottom. If you have iCloud Photos turned on, the status bar also shows how the photo library on your Mac compares to what's in iCloud Photos. If you're uploading photos to iCloud Photos, you can click Pause or Resume here.
Manage Items on This Mac Only
If there are "referenced" photos or videos in the library on your Mac, you might see Items on This Mac Only in the status bar. Referenced items aren't uploaded to iCloud Photos, and aren't available on other devices. If you want to include them in iCloud Photos, here's what to do:
- Choose File > New Smart Album.
- Name the Smart Album "Referenced" and select Photo - is - referenced. Click OK.
- Select "Referenced" in the left sidebar.
- Press Command-A to select all the photos in the Smart Album, and then choose File > Consolidate.