That depends which thrush you are talking about. Robins are members of the thrush family. The thrush family ranges in size from 0.75oz to 6.3oz. The American robin is around 2.7oz.
Bluebirds are most closely related to thrushes such as the American Robin, the hermit thrush, wood thrush, etc.
Thrush
There is no bird known as a "mizzle thrush." It may be a mispronunciation or mishearing of "mistle thrush," which is a common bird species found in Europe and Asia. The mistle thrush is known for its loud and distinctive song and can be identified by its pale underparts and bold, spotted plumage.
The American robin is in the thrush family (Turdidae), and in the "perching bird" order (Passeriformes).
This bird is called a fieldfare.
Song thrush. Mistle thrush. There are many birds around the world whose name ends with thrush (South Island thrush, native thrush, New Zealand thrush...)
A Passerine, or perching bird, the robin is a thrush, Turdus Migratorius.
The american robin is actually a type of thrush, wheras the european robin is a true robin.
No, thrush is not a bacteria. Thrush is the name of a yeast infection.
An ant thrush is either of two species of insectivorous thrush - Neocossyphus rufus - the red-tailed ant thrush - and neocossyphus poensis - the white-tailed ant thrush.
thrush (the bird) = tordo, zorzal, malvis (accent on the 'i') thrush (medical) = aita (accent on the 'i') thrush (veterinary) = higo