She composed a history of London guilds during the reign of Richard II and edited the journal of Giles Moore, clergyman of Horsted Keynes; this town was the subject of much of her study after retirement.
This covered her tuition fees and awarded her use of Institute of Historical Research while she studied at Belford, under the supervision of Jeffries Davis and J. W. Allen.
D. Anne Welch, writing for the Oxford Dictionary of National Biography, memorialised her as an educator who "loved her chosen career, and was an inspirational and enthusiastic classroom teacher".
[1] Twenty-seven years after its composition, Bird prepared her master's thesis into a book-length publication, having made some revisions at the London School of Economics in 1935–6.
According to Welch, this publication revealed "deep political and personal complexities, which have precluded any subsequent simplistic assessment of the situation".
[1] The book was reviewed favourably by A. Tindal Hart, writing for the Journal of Ecclesiastical History, who described that, while ostensively dull in subject matter, in its pages "there emerges the vivid portrait of a seventeenth century country rector in relation to his home and family, his parishioners, and the authorities in Church and State".
[4] In Leicester, Bird co-wrote the Victoria County History entries on Humberstone and Knighton for the series' 1958 publication on Leicestershire.
[1] According to Welch, Bird was also a keen traveller and "emphasized the international perspective to history as a means of furthering peace among nations".