"After all, it is not entirely to exchange information that lovers of birds converse together on this subject. An artist will paint the commonest object in order to bring out some aspect that has particularly struck him. So with watchers of birds, some are attracted by some aspect of a well-known species and some by another. Thus even those of us who have nothing new to tell, may have something that is fresh to say."  The Charm of Birds, Viscount Grey of Fallodon, Hodder and Stoughton, 1927.