*Oology is a branch of ornithology studying bird eggs, nests and breeding behaviour. The word is derived from the Greek oion, meaning egg.
27. Killdeer
This part of the Stanislaus Audubon Website is focused on 44 common Central Valley nesting species with background about their nesting habits. Please check the Great Valley Museum Central Valley Egg Collection starting page for links to all the featured species.
KILLDEER NESTING INFORMATION (From birdsoftheworld.org)
Nests - Some pairs remain together and defend their territory year-round. Nest site may be chosen ≥6 d before first egg is laid. Nest is characteristically open, with sparse low vegetation or no vegetation. Uses large, flat graveled rooftops throughout breeding range.
Eggs - Ovate pyriform, dull tan or cream to yellow-gray base, with varied shades and sizes (generally small) of irregular darker-brown blotches, sometimes more conspicuous at larger end. Clutch size typically 4 eggs; rarely 5 or 6
Incubation - By both sexes; more often by male at night. Usually 24 to 25 days (range 22 to 28).
Fledging - Young are precocial leaving with parents immediately after last egg hatches.
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