a narrow, small black seed enjoyed by goldfinches, pine siskins, house and purple finches. Not preferred by House Sparrows. Also called thistle seed (although it does not come from the thistle plant), niger or nyger seed. Found on http://www.sialis.org/glossary.htm
a narrow, small black seed enjoyed by goldfinches, pine siskins, house and purple finches. Not preferred by House Sparrows. Also called thistle seed (although it does not come from the thistle plant), niger or nyger seed.