Feather Care

1

Preening

8 9

Preening: Seasonality(Temperate Zone)

Preening: Tropics versus Temperate

Preening: Molting Feathers

Preening: Nest Incubation

Allopreening12

1314

Oil Gland (= Uropygial Gland) (= Preen Gland)

Oiling

PigeonChicken

Oiling: Function

Wood-Hoopoe

Head-Scratching

6

7

Bathing

Bathing: Consequences for a Wet Bird

24 Bathing: Dust

2526

27

Sunning

Sunning

?

Passive Active

? ?

Feather Development

Pin FeathersProctor and Lynch 1994, p. 87

Feather Development I: Feather Papilla and Follicle Development

Fgi. 3.24 in Podulka et al. 2004

Feather Development II: Epidermal Collar (= Follicle Collar) and Dermal Papilla Development

Fig. 4-8 in Gill 2008

Feather Development III: Feather Sheath and Barb Development

Fig. 3-24 in Podulka et al. 2004

Feather Development IV: Calamus Development and Feather Emergence

Proctor and Lynch 1994, p. 87

Pin Feathers

Proctor and Lynch 1993, p. 83

Feather Development V: Severing the Connection

Feather Molt; Feather Color