He was waking Smaug from his long sleep. He was "knocking" on the door which was the entrance...
Balin mentions that he could understand the speech of Ravens. The Thrush flies off and returns with a Raven named Roac. He is such an intelligent old bird he speaks in the Common tongue and we never find out if the dwarves can understand Raven speech.
This would be the thrush. There were also ancient ravens around the mountain. Some of them could communicate with the dwarves.
While Bilbo was sitting and thinking, a thrush flew up with a snail. It was knocking the snail against a rock, and it prodded Bilbo to remember the riddle from the map.
A HOBBIT, of course!
'The Hobbit' of course!
A thrush.
The thrush overheard the conversation that Bilbo had with the dragon about the spot.
It is the thrush mentioned in moon-runes on Thorin's map. ' "Stand by the grey stone when the thrush knocks," read Elrond, "and the setting sun with the last light of Durin's day will shine upon the key-hole." ' -page 50 of The Hobbit, by J.R.R Tolkein. (I don't own anything!) It is knocking on the door of Erebor with a snail, which shows the dwarves and Bilbo how to get in. (on page 189)
Balin mentions that he could understand the speech of Ravens. The Thrush flies off and returns with a Raven named Roac. He is such an intelligent old bird he speaks in the Common tongue and we never find out if the dwarves can understand Raven speech.
The Old Thrush, one of the species of Great Thrush that lived in the Esgaroth region, told Bard that Smaug had a hole in his armored chest right over his heart.
An old raven, son of Carc, chief of all ravens.
Stand by the grey stone when the thrush knocks, and the setting sun with the last light of Durin's Day will shine upon the key-hole
This would be the thrush. There were also ancient ravens around the mountain. Some of them could communicate with the dwarves.
Song thrush. Mistle thrush. There are many birds around the world whose name ends with thrush (South Island thrush, native thrush, New Zealand thrush...)
While Bilbo was sitting and thinking, a thrush flew up with a snail. It was knocking the snail against a rock, and it prodded Bilbo to remember the riddle from the map.
No, thrush is not a bacteria. Thrush is the name of a yeast infection.
The information was that of a weak spot in Smaug's armour, a gap in his coat of scales, through which the arrow that killed him was fired.