The Eagle Tavern is the largest building, with dark brick and (wooden?) eagle over the entrance
Caption: 
The Eagle Tavern and adjoining buildings, 1825.
Built 1825, by Benj. Rathbun, west side of Main, south of Court. Tavern blown up when the American Hotel burned, 1865.
From an old print owned by the Buffalo Historical Society.

Source: "The Picture Book of Earlier Buffalo," Frank H. Severance , ed. Buffalo Historical Society Publications, Vol. 16, 1912, p. 161 This book has been digitized by  Cornell University and by Google Books

The Eagle Tavern is the building at far right, with (wooden?) eagle over the entrance
Caption: 
Rathbun's Eagle Tavern as it was in 1825. 
From an engraving of that date by Rawdon, Clark & Co., Albany, after a drawing by George Catlin.

The American Hotel is the largest building in the illustration; the Eagle Tavern is the building at far right, only partially pictured
Caption: 
An early print of the First American Hotel and Eagle Tavern.
From the original owned by the Buffalo Historical Society.

Source: "The Picture Book of Earlier Buffalo," Frank H. Severance , ed. Buffalo Historical Society Publications, Vol. 16, 1912, p. 163

Eagle Tavern, 1825, by John Renfrew Dean, oil on canvas, ca. 1925.
Source: On display in Jan 2005 at the  Buffalo & Erie County Historical Society

In the same year the courthouse went up, 1816, Gaius Kibbe built a spacious three-story Georgian-style tavern and adorned it with his own name.

He sold it three years later to entrepreneur Benjamin Rathbun who renamed it the Eagle tavern and made it the finest stagecoach stop and public gathering place west of New York City.

The Eagle was on the west side of Main below Court Street [Liberty Building in 2016]. Across Main from the Eagle there blossomed Buffalo's first theater. It was called simply The Theatre, and if nothing else, it was an amenity serving notice that a more refined urban life was in the making.

Notable events that took place in the Eagle Tavern:

• In 1825, Erie Canal commissioners listened to Peter Porter (Black Rock) and Sam Wilkeson (Buffalo) argue their case for the Canal terminus.
• In June of 1825, the Marquis de Lafayette, the French hero of the American Revolution, visited Buffalo. He rode in an open carriage in a parade up Main Street. and then taken to the Eagle Tavern where he was put up for the night and royally entertained at a reception and then at a banquet
• On October 1825, Gov. DeWitt Clinton was in Buffalo to celebrate the opening of the Erie Canal. Part of the festivities included a dinner hosted by Judge Ebenezer Walden at the eagle Tavern, and another party at the Mansion House. The day ended with a grand ball held at the Eagle.

Destroyed by fire in 1865.

Text source: "Buffalo: Lake City in Niagara Land,"by Richard C. Brown and Bob Watson. USA: Windsor Publications, 1981, pp. 26, 31, 34, 36, 42