A little info on goldfinches: Fully grown goldfinches are 4-5.5", they have a year-round black cap a stubby bill,a bright yellow underside,a white rump, and white edges on black wings. Because goldfinches move around a lot there may be times when there are no birds on the feeder. There may also be times that there are a lot of goldfinches on your plants or flowers.
- They are late nesters, they nest in June through September.
- They nest in hedges, bushes, and trees.
- They feed more during the spring and will feed during the whole summer.
- They lose their feathers and grow new ones twice a year, once in the spring and again in the fall after nesting season.
- They eat thistle seeds and use thistle down for their nests.
- They build thier nests up 30 feet of the ground
- Goldfinches move around a lot! You could see 25-100 different goldfinches at one feeder in the same day.