Heligoland as an ornithological observatory
Subtitle: the result of fifty years' experience
By: by Heinrich Gätke. Tr. by Rudolph Rosenstock.
Contributors: Rosenstock, Rudolph, tr.
Publisher: D. Douglas
Published: 1895
Place of publication: Edinburgh
Language: eng
Number of pages: 599
Subjects: Birds -- Germany -- Helgoland; Birds -- Migration
Notes: Title vignette: View of Heligoland.
Table of contents: title: Migration of birds.; title: Changes in the colour of the plumage of birds without moulting.; title: Account of the birds observed in Heligoland.