Artist and Naturalist in Ethiopia by Louise Agassiz Fuertes (late artist and ornithologist of the Field Museum-Chicago) and Wilfred Hudson Osgood (Curator of Zoology, Field Museum)
From the preface:
What follows is the day-by-day record of actual experiences during an extensive zoological expedition in Ethiopia…The book takes the unusual form of the concurrent diaries of two men, Louise Agassiz Fuertes and myself…
Who knew vultures were so cute?!