Trying to keep a flock of bird’s calcium levels up can be challenging and I’ve been looking for a more affordable way of offering it to my birds. I recently bought the powdered form of this eggshell based calcium and gave it to my birds in free choice finger trays. All of them have been using it and I’m sure the health benefits will follow. I have 5 canaries, Exhibition budgies and my family birds: 2 Bourkes, a Turquoisine, a green cheek conure and a plumhead parakeet. Great product! I’m glad you carry this product.