Page 55 - Hand rearing birds second

Development and
Species Feet (Tarsus/toes) Weight (g) Integument Beak / Mouth Vocalizations Other
Red‐tailed Unfeathered, Hatch: 58 Down: 1st down short, Black, hooked. Young chicks emit soft Iris: dark, light
Hawk yellow, become buff‐white or grayish‐ Gape: cream to buff. pipsee calls. Older yellow in juv.
(Buteo more yellow in Adult: F: 1224, white, no down on femur. young make loud, Leave nest: d
jamaicensis) juvenile. M: 1028 White occipital spot may be rapid klee‐uk calls. 42–46, sustained
visible. 2nd down: shorter, flight 6 wk.
thicker, white. d 9: 7th
Refs: 1, 7 primary emerges, down
(bna.52) pale gray. d 29–30: head
90% downy, occipital spot
still evident.
OWLS (Tytonidae): Zygodactyl toe arrangement, raptorial feet. Altricial young.
Barn Owl Long, with grayish Hatch: 12–21 Skin: pink areas. 1st down: Hooked, raptorial, Young owlets twitter Iris: pale blue at
(Tyto alba) white down on sparse, short, and grayish ivory color. when fighting with first. Leave nest:
tarsus to toes (naked Adult: F: white on dorsal surfaces, siblings or seeking 50–55 d, fly at 60 d,
on back of tarsus).
independent by d
lacking on belly and sides
attention. Food call is
Refs: 1, 7 (bna.1) 357‐566, M: of neck. 2nd down (12 d): raspy scheuh. Also 76–86. Young in
306‐474 long, dense, white to pale hissing and other brood vary greatly
Weights vary by gray or buff. sounds. in size.
subspecies
OWLS, TYPICAL (Strigidae): Zygodactyl toe arrangement, raptorial feet. Altricial young.
Great Horned Pink. Hatch: ~35 Skin: pink. 1st down: pure Hooked, raptorial, Rasping chirp, then Eyes: open 9–11 d,
Owl white on dorsal surfaces. slate gray color whimper becoming iris becomes yellow
(Bubo Adult: F: 2nd down: long, soft, louder and more by 30 d. Branch at
virginianus) 1142–1768, M: grayish buff or yellowish‐ intense with growth. 6 wk., first (short)
914–1318 white or grayish‐white, Juvenile males do not flights 7 wk., more
mottled on back. Ear tufts:
hoot until late fall/
sustained 9–10 wk.
Refs: 1, 7 Weights vary by fully grown 26 wk. early winter, females Long dependency.
(bna.372) subspecies more in spring.
KINGFISHERS (Alcedinidae): Syndactyl toe arrangement. Altricial young.
Belted Tarsus very short, Hatch: 9–13 Skin: bright pink. Down: Blackish, heavy, Rattle call at 5–7 d. Nest: burrow in
Kingfisher 2nd and 3rd toes none. d 6: pins emerge in longer than head, bank near water.
(Megaceryle fused together, short Adult: 148 humeral tract. d 13: dorsal lower mandible Nestling diet: fish
alcyon) hallux (pointed surface covered in feathers. longer than upper. and arthropods.
back), “heal pads.” d 16–18 appear fully Mouth: lining pink, Leave burrow:
Refs: 7, 9 feathered. no gape flanges. 27–29 d, can fly.
(bna.84)
(Continued)

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