The aim of this booklet is to give a short and simple description of the commonest birds of the country from which they may be identified by the non-scientific person, together with notes on the food they eat that may be considered as "pro" and "con" the interests of the husbandman, gardener or gamekeeper, and also their local names.
The author aims to describe the geographical variety of birds and categorizes them systematically.
The following pages are an addition to the works of that, the author wrote down previously. According to him It includes only the most important things like the new described forms and the geographical distribution.
The author describes that with the help of his international colleagues and his role as a curator of an ornithological collection he wrote this publication about the systematics of birds.
The author commences with a general sketch of bird structure, purposely avoiding histological detail and the elaborate description of anatomical facts which are in the mind of the author not of great use in classification.
L'étude du nid de l'oiseau un des facteurs les plus puissants qu'on puisse invoquer en faveur de la théorie mécanique des instincts et peut-être la lecture de cet ouvrage fixera-t-elle certains points encore obscurs dans l'histoire de la nidification.
The Author of this book aims to show a beginner in the field of birdwatching and conservation the details of the life of the native German birds and he includes illustrations.
L'ornithologie, comme toutes les branches de la zoologie, a fait des progrès si gigantesques et rassemble une masse si énorme de documents que, par amplifier et compliquer. De là, des difficultés sans nombre qui, trop souvent, déroutent et qu'on ne surmonte qu'avec une volonté tenace et un travail persévérant.
