Typically, an involucre with a clasping shape of a cup or urn subtends each of a thistle's flowerheads. The term thistle is sometimes taken to mean exactly those plants in the tribe Cynareae (synonym: Cardueae), especially the genera Carduus, Cirsium, and Onopordum. However, plants outside this tribe are sometimes called thistles, and if this is done thistles would form a polyphyletic group.
https://en.wikipedia.org/wiki/Thistle
Mourning doves also enjoy thistle seeds. These birds are larger than sparrows and finches, about 12 inches tall, and are fairly dull in color. Their backs are a grayish brown while their bellies and chest are brown with pink undertones. They have thin, black beaks and a small dot beneath their black eyes.
https://www.cuteness.com/article/birds-eat-thistle-seed
Milk thistle (Silybum ebumeum or Silybum marianum) has been used for over 2000 years as a. remedy for various types of liver disease. Since 1969 compounds of milk thistle have been. available for medical use in Europe.
https://www.parrots.org/pdfs/all_about_parrots/reference_library/health_and_nutrition/Milk_Thistle.pdf
How to Choose the Right Kind of Bird Feeder. The seed that attracts the widest variety of birds, and so the mainstay for most backyard bird feeders, is sunflower. Other varieties of seed can help attract different types of birds to round out your backyard visitors. In general, mixtures that contain red millet, oats, and other “fillers” are not attractive to most birds and can lead to a lot of waste as the birds sort through the mix.
https://www.allaboutbirds.org/types-of-bird-seed-a-quick-guide/
used as a remedy to help prevent recurrence of the disease and as a well-being tonic. Suggested. doses for silymarin range from 50-250 mg/day (100-150 mg/kg every 8-12 hours in birds), and. this is dependent on the purity and potency of the various commercial milk thistle products.
https://www.parrots.org/pdfs/all_about_parrots/reference_library/health_and_nutrition/Milk_Thistle.pdf
Thistle seeds are an ideal wild bird food for several North American species. The seeds are small and packed with nutrients, fat and protein and especially hearty for winter feeding. The best way to feed thistle seed is with a tube feeder or a thistle sock, both of which feature very small holes through which the birds can extract the seeds. gatito33/iStock/Getty Images.
https://www.cuteness.com/article/birds-eat-thistle-seed
About Suet, Mealworms, and Other Bird Foods. The seed that attracts the widest variety of birds, and so the mainstay for most backyard bird feeders, is sunflower. Other varieties of seed can help attract different types of birds to round out your backyard visitors.
https://www.allaboutbirds.org/types-of-bird-seed-a-quick-guide/
Thistle is the common name of a group of flowering plants characterised by leaves with sharp prickles on the margins, mostly in the family Asteraceae. Prickles often occur all over the plant – on surfaces such as those of the stem and flat parts of leaves.
https://en.wikipedia.org/wiki/Thistle
Milk Thistle as a Nutritional Supplement for Birds Desi Milpac her. 1. The Benefits and Limitations of Milk Thistle as a Nutritional. Supplement for Birds. by Desi Milpacher. A member of the daisy family, the milk thistle, a waxy-lobed, thorny plant grows wild in Europe. and has spread easily to other parts of the world. The attractive purple-pink flowers bloom in. spring, drying out by the time summer comes.
https://www.parrots.org/pdfs/all_about_parrots/reference_library/health_and_nutrition/Milk_Thistle.pdf
As invasive thistle plants became a recognized problem in North America, suppliers shifted to a daisy-like plant, known as Guizotia abyssinica, that produces a similar type of small, oily, rich seed. The plant is now known as niger or nyjer, and is imported from overseas.
https://www.allaboutbirds.org/types-of-bird-seed-a-quick-guide/
what is thistle food for birds
Thistle is an ideal wild bird food for several North American species. Thistle foods are an ideal wild bird food for several North American species.