Nyjer vs Thistle Seed: They’re Not the Same (And It Matters)
The seed sold as “thistle” for finches is not true thistle seed. It comes from Guizotia abyssinica, an African member of the daisy family whose common name is niger; Nyjer is the trademarked spelling widely used by the North American bird-feeding industry. Imported niger seed must receive an approved phytosanitary treatment before U.S. entry, commonly … Read more