A Murmuration of Starling or an Exaltation of Lark?

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Overview:

Title: A Murmuration of Starling or an Exaltation of Lark?
Author: George Turner
Year: 1977
Type: Essays

Editions/Publications:

Unknown. SF Commentary, #76 (Unknown, George Turner, Bruce Gillespie, 120 pages, ebook, FANZINE)
Unknown. SF Commentary, #52 (Unknown, George Turner, Bruce Gillespie, A$1.00, 24 pages, quarto, FANZINE)