11 



CONTENTS. 



Para. 



Sul)ject. 



Page. 



CiiAriKu VI. 

 Ap}iKirance. 



17. General appearance— (j) in flight, (/?) on the 



water . . . . . . , . 25 



18. Size 



ClUPTKU VTI. 



Size. 



2b 



ClIAPTRU YIII. 



Colouratiott. 



19. Colouration from below 



20. Moulting and change of colouration 



21. Index colouring of lower plumage, flanks and 



under tail-coverts 



22. Classification according to the pattern of the 



primary feathers 



23. Similarity or dissimilarity in colouring, of the 



sexes 



24. Birds that show much white Avheu they fly . . 



27 

 30 



31 



31 



32 

 33 



Chaptiu IX. 

 Fltyht. 



25. Speed 



26. Tricks of flight 



27. Manner of rising wlien surprised . . 



28. Regular formations in flight 



29. Distinctive noises in overhead flight 



CiiArrKit X. 

 yeediny. 



30. Feeding 



34 

 38 

 40 

 42 

 44 



48 



81, 



ClIAI'TKU X[. 



Size of Flocks. 

 Rough average size of flocks 



53 



