Function%20of%20nests:

1

• Function of nests
• Support for adult and eggs
• 2) Mate attraction Weaver birds
• marsh wren
• 3) Female stimulation
• 4) Thermoregulation
• A) Insulation ducks and down
• B) Microsite selection
• cactus wren

2
5) Decrease predation- Major source of nest loss
A) Nest predators
3

• How to Avoid Predation?
• Crypsis of eggs or parent
• Location Cliffs, islands
• Floating nests
• Cavities
• Thin Tree Limbs
• 3) Safety in Numbers - Coloniality
• Deception yellow-rumped thornbill
• Hired Gun tropical wrens

4
Nest variation type in swallows (O Passeriformes,
F Hirundinidae)
burrowers
Rough-winged And Bank Swallows
5
Violet-green Swallow
Tree Swallow
Secondary cavity nesters
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Mud nests Cup nest Barn Swallows
7
Retort mud nest - Cliff and Cave Swallows
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Genetic analysis reveals evolutionary
relationships reflected by nests
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Apodiformes- swifts - convergent on swallows but
related to hummers!
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Apodiformes-
Edible (White-nest) and Black-nest Swiftlets
Cave dwelling swiflets of SE Asia birds that
think they are bats Echolocating, insectivorous
cave dwellers
Double echo click
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Verdin
Common Bushtit
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Nest building is both Innate and refined
through learning
Fig 16-6 and 16-7
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African Weaver birds F Ploceidae
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F Icteridae - Oropendolas
Orioles