BWP (vol. 5) gives the breeding season of Dupont's Lark Chersophilus duponti as March-May, but does not describe the incubation period or the appearance of the nestlings. On 18th June 1990, near Belchite, Spain, I found an adult Dupont's Lark incubating three fresh eggs. By about 06.00 hours on 29th June, the eggs had still not hatched, but around 07.00 hours on 30th I found three chicks in the nest

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