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This module covers the following four orders: CUCULIFORMES — cuckoos OPISTHOCIFORMES — hoatzin STRIGIFORMES — owls CAPRIMULGIFORMES — nightjars & allies.

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Presentation on theme: "This module covers the following four orders: CUCULIFORMES — cuckoos OPISTHOCIFORMES — hoatzin STRIGIFORMES — owls CAPRIMULGIFORMES — nightjars & allies."— Presentation transcript:

1 This module covers the following four orders: CUCULIFORMES — cuckoos OPISTHOCIFORMES — hoatzin STRIGIFORMES — owls CAPRIMULGIFORMES — nightjars & allies

2 Cuckoos & Allies Fan-tailed Cuckoo, Australia

3 Range: worldwide Morphology/ecology: arboreal or terrestrial (e.g. roadrunner); feet zygodactyl; tail long & graduated; insectivores, often specializing on hairy caterpillars Behavior: many are obligate brood parasites whose chicks are raised by other species Taxonomic notes: hoatzin moved from cuckoos to own order Important families: *Cuculidae: cuckoos, anis, ground-cuckoos (includes roadrunner) *ORDER CUCULIFORMES — Cuckoos — 1 family; 137 species

4 Family Cuculidae: cuckoos, anis, coucals White-browed Coucal Kenya

5 Greater Roadrunner, Joshua Tree

6 Guira Cuckoo, Brazil

7 African Emerald Cuckoo (web)

8 Common Cuckoo, parasitizing reed warbler nest

9 Reed Warbler feeding cuckoo fledgling (web)

10 Cuckoo egg in reed warbler nest

11 HOST CUCKOO Reed Warbler Meadow Pipit Great Reed Warbler Cuckoos lay mimetic eggs

12 Range: South America Morphology/ecology: arboreal; leaf-eater with fermenting gut like a cow; very weak flier, cool spikey crest Behavior: chicks have two functional claws on wings that are used to clamber about branches near nest; live in social groups in forested swamps; cooperative breeder Taxonomic notes: closest relatives unclear, has been varyingly allied with cuckoos, turacos or fowl-like birds Important families: *Opisthocomidae: hoatzin (South America); leaf-eater with gut like a cow, chicks have clawed wings *ORDER OPISTHOCOFORMES —Hoatzin — 1 family; 1 species

13 Family Opisthocomidae: hoatzin Hoatzin, Peru web

14 Christopher Plummer

15 Owls Long-eared Owl, Mercy Hotsprings, California

16 Range: worldwide Morphology/ecology: nocturnal, predatory birds with large head, round or heart-shaped facial disc, & large, forward- facing eyes; hooked beaks and strong talon; very soft plumage for silent flight; feet zygodactyl Behavior: hunt by hearing; round facial discs concentrate sounds and enhance hearing; never build nests but use cavity or old nests of other species Important families: *Tytonidae: barn-owls (heart shaped facial disks) *Strigidae: owls *ORDER STRIGIFORMES — Owls — 2 families; 178 species

17 Family Tytonidae: barn-owls

18 Family Strigidae: owls Great Horned Owl UCSC Campus

19 baby Great Horned Owls, Ontario Great Horned Owl UCSC Campus

20 Great Gray Owl, British Columbia

21 Owls don ’ t build nests: they use cavities or old stick nests Barred Owl in natural cavityGreat Horned Owl in old crow nest

22 Lesser Nighthawk, Mexico Nightjars & Allies

23 Range: nearly Worldwide Morphology/ecology: nocturnal birds with relatively large head, short neck & legs; bill short, flattened, with wide gape; usually surrounded by rictal bristles; insect hunters that catch insects on the wing (except oilbird which feeds on oily palm fruit); soft cryptically- colored plumage Behavior: one or two eggs on ground or simple twig nest; chicks semi altricial (helpless but downy) Taxonomic notes: may be related to owls; owlet-nightjars moved to join hummingbirds & swifts Important families: *Caprimulgidae: nightjars *ORDER CAPRIMULGIFORMES — Nightjars & Allies — 5 families; 113 species

24 Common Nighthawk Colorado Family Caprimulgidae nightjars

25 Pennant-winged Nightjar Web

26 Standard-winged Nightjar Web


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