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The ability of birds to return to precise locations across vast distances has been known for some time; in an experiment conducted in the 1950s a Manx shearwater released in Boston returned to its colony in Skomer, Wales, within 13 days, a distance of 5,150 km (3,200 mi). Birds navigate during migration using a variety of methods. For diurnal migrants, the sun is used to navigate by day, and a stellar compass is used at night. Birds that use the sun compensate for the changing position of the sun during the day by the use of an internal clock. Orientation with the stellar compass depends on the position of the constellations surrounding Polaris. These are backed up in some species by their ability to sense the Earth's geomagnetism through specialised photoreceptors.

In which type of migration do birds use the sun to navigate by day and a stellar compass at night?
Answer: diurnal migrants
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31st Street begins on the West Side at the West Side Yard, while 32nd Street, which includes a segment officially known as Korea Way between Fifth Avenue and Broadway in Manhattan's Koreatown, begins at the entrance to Penn Station and Madison Square Garden. On the East Side, both streets end at Second Avenue at Kips Bay Towers and NYU Medical Center which occupy the area between 30th and 34th Streets. The Catholic church of St. Francis of Assisi is situated at 135–139 West 31st Street. At 210 West is the Capuchin Monastery of St. John the Baptist, part of St. John the Baptist Church on 30th Street. At the corner of Broadway and West 31st Street is the Grand Hotel. The former Hotel Pierrepont was located at 43 West 32nd Street, The Continental NYC tower is at the corner of Sixth Avenue and 32nd Street. 29 East 32nd Street was the location of the first building owned by the Grolier Club between 1890 and 1917.

The corner of Broadway and West 31st Street is home to what business?
Answer: Grand Hotel
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The house which forms the architectural core of the palace was built for the first Duke of Buckingham and Normanby in 1703 to the design of William Winde. The style chosen was of a large, three-floored central block with two smaller flanking service wings. Buckingham House was eventually sold by Buckingham's descendant, Sir Charles Sheffield, in 1761 to George III for £21,000. Sheffield's leasehold on the mulberry garden site, the freehold of which was still owned by the royal family, was due to expire in 1774.

Who bought Buckingham House in 1761?
Answer:
George III