330 



INDEX 



NATURAL history, no finality in, 



249 



Nature, sometimes looks un- 

 natural, 88 



Two voices of, no 



Full of irony, 245 

 Nest, false, of peewit, the, 166- 

 168 ; is the real nest, 168 



Of birds, suggested origin of 

 the, 168-180 



May have been originally a 

 thalamum more especially, 

 181, 182 



Was once put to two uses 

 habitually, 181, 182; as it 

 still is in some instances, 

 182 



Nest - building instinct, sug- 

 gested origin of, in birds, 

 168-184 

 Nightingale, hen alone seen to 



build, 206 



Nightjar, common about Ick- 

 lingham, 21 



Sits on extreme tip- top of 

 spruce or larch, 21 



Its habit of clapping its 

 wings, 21-23 sometimes 

 a great many times con- 

 secutively, 22, 23 



" Quaw-ee," note of, 21 



Beauty of flight and aerial 

 mastery of, 22 



A new sensation obtained by 

 seeing it, 22 



Domestic habits of, 23-37 



Change on the nest of, 24 



Churring note uttered by both 

 sexes, 25 



Expressive power of the churr, 

 26 



Incubation shared by male 

 and female, 23, 24, 26 



Sexes hard to distinguish, 

 26 



Male less skilful in incubation 

 than female, 26 



Nightjar (continued] 



Hen, the more assiduous 

 sitter, 26 



Interesting scene observed, 

 26-29 



Method of moving eggs 

 adopted by, 27 



Mahomet and the mountain, 

 28 



Both parents feed chicks, 29 



Low querulous note of, whilst 

 in unharassed circum- 

 stances, 29 



Chicks fed by regurgitation, 



2 9-3 2 5 34 

 Probable mode of catching 



insects of, 30-33 

 Kind of insects, &c., mostly 



eaten by, 31-33 

 An aerial whale, 33, 258 

 Difference in size between the 



two chicks of, 35 

 Early quiescence and later 



activity of chicks, 35, 



3 6 . 



Nesting site gradually de- 

 serted, 35 



Chicks called up by parents, 



35,36 



Maternal ruse practised by, 36 



Anxiety of parents in regard 

 to chicks, 36, 37 



Chicks walk or run easily, 

 37 ; as do also the grown 

 birds, 37 



Nuptial rite may be performed 

 on the ground, 37 



Variety of notes of, 37-39 ; 

 no special limited meaning 

 assignable to these, 37-39 



Resemblance of, to piece of 

 fir- bark, 40, 41 ; possible 

 meaning of such resem- 

 blance, 41, 42 



Generally protective colouring 

 in relation to incubative, 

 &c., habits of, 42, 43 



