Bird was born in May 1624 in St Nicholas' Parish in
Gloucester and baptised in that church on 1 June 1624. He was the son of William Byrd of Hallywell or Holywell (d.1657) also a mason. He appears related by marriage to the London mason, Robert White, whose son was christened Simon Byrd White. Around 1638 he was apprenticed to Walter Nicholls of Gloucester, becoming time-served after 8 years. He set up his own business around 1645 and from 1647 was mainly working in
Oxford. Mason work was not in demand during the
English Civil War and it seems possible (or even probable) that he took some part in the war in the 1640s on the Royalist side. His stoneyard was located between
Wadham College and
All Souls College. Christopher Wren attended both and attended this part of Oxford from 1651 to 1657. In his traversing of the city Wren must have certainly encountered, if not befriended, William Bird, and the two went on to collaborate on several projects of national importance. Bird is first noted as paying tax on his yard in 1652 and was official college mason to Wadham College from at least 1656. By 1667 he was living in a tenement on the corner of Smith Street (on a site now occupied by
Hertford College). He lived here with his wife, two children and two apprentices:
Thomas Wood (1646-1695) and Richard Wood. Probably brothers Thomas rose to fame in his own right. In 1686 he was receiving £37 per month for his work at Winchester, but from this he had to pay 14 masons and 7 labourers under his employ. Due to various miscalculations or under-pricing for work, by December 1686 he was having to plead for more money from New College due to extreme poverty. His business skills therefore did not match his artistry. Rather than pay a requested £10 the college officials chose to terminate his contract. The Peisley family took over as college masons in Oxford in 1692, by which date it can therefore be presumed that Bird had died. His house on Smith Street was occupied by the Piddington family (also masons) from 1692. There is no record of his exact date of death but logically it can be placed in 1691. In the wider circumstances he is likely to be in an unmarked grave in Oxford, but his apprentice Wood may have created a stone. ==Family==