I came across this post from one of my favorite rescues about double shepard's hooks hurting animals, and I hadn't heard about this before so I thought I'd share.
Beware of the dangers posed by shepherd's hook bird feeder poles! Every year, rehabilitators rescue countless birds and squirrels that become ensnared in the V- shaped gap between the two hooks. In their frantic attempts to escape, these animals often sustain serious injuries.
You can easily prevent these tragic situations by removing the second hook and opting for a single-hook pole that eliminates any V-shaped joints. Alternatively, consider wrapping the narrow joint with cloth, vet wrap or self-adhering tape (without adhesive) to mitigate risks.
Narrow gaps can become deadly traps for wildlife. Birds and squirrels, eager to reach feeders or other items, can easily get their legs or feet stuck in these tight spaces, resulting in painful injuries or even death. By taking some simple precautions, you can protect the beloved wildlife in your yard from unnecessary harm.
One person in the comments suggested JB Weld as a more permanent solution.
I don't have the hooks, but I always want to keep my bird buddies safe. If you guys use them, you may want to consider critter proofing your hooks.
Nice! The world is a little safer for our animal friends!