The 1.5 inch openings are small enough to keep squirrels and larger birds away from bird seed. This makes it cost effective to protect the more desirable seed.
I purchased two of the protective screens for my bird feeders and they worked very well within 2 days all of the unwanted starlings and predator birds left the seed alone and the finches and other small birds came back.
The only thing I had to do is modify the base of the cage because it would not hook to my bird feeder so I took 4 zip ties aligned it on the bottom and zip tied to on each side and it works perfectly. See photos attached..
This product is perfect! I have been looking for this for over 2 years and will be ordering more.
I feed small birds year round and have spent a lot of money switching out feeders when spring comes to try
and keep the blackbirds and larger birds away. This is the perfect solution.
Great product. Keeps big birds away. Delivered promptly.