1. Feather Care

2. 1 Preening

3. 8 9 Preening: Seasonality (Temperate Zone)

4. Preening: Tropics versus Temperate

5. Preening: Molting Feathers

6. Preening: Nest Incubation

7. Allopreening 12 13 14

8. Oil Gland (= Uropygial Gland) (= Preen Gland) Oiling PigeonChicken

9. Oiling: Function Wood-Hoopoe

10. Head-Scratching 6 7

11. Bathing

12. Bathing: Consequences for a Wet Bird

13. 24 Bathing: Dust 25 26

14. 27 Sunning

15. ?

16. PassiveActive ? ?

17. Feather Development Pin Feathers Proctor and Lynch 1994, p. 87

18. Feather Development I: Feather Papilla and Follicle Development Fgi. 3.24 in Podulka et al. 2004

19. Feather Development II: Epidermal Collar (= Follicle Collar) and Dermal Papilla Development Fig. 4-8 in Gill 2008

20. Feather Development III: Feather Sheath and Barb Development Fig. 3-24 in Podulka et al. 2004

21. Feather Development IV: Calamus Development and Feather Emergence Proctor and Lynch 1994, p. 87

22. Pin Feathers

23. Proctor and Lynch 1993, p. 83 Feather Development V: Severing the Connection

24. Feather Molt; Feather Color