fledging


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Of the 1712 nests that successfully hatched young, fledging fate was determined on 1707, of which 1317 (77.2%) successfully fledged at least one chick.
None of these studies looked at whether cave swallows might be impacting clutch size, hatching success, or fledging success of barn swallows.
"Unlike some other bird species, which let their offspring dictate the level of care, seabirds appear to weigh up the cost of a chick fledging underweight against the greater cost of losing the chance to breed again "Manx Shearwaters have a breeding life of around forty years, so parents pay a high cost if they end the season too weak to complete their own migration," he added.
However, quite close to fledging time, two more chicks suddenly died from bacterial infections.
Although fledgling production was not adversely affected by experimental increases in brood size, most enlarged broods lost young during the 10-12 d immediately after fledging. Thus, enlarged broods ultimately produced no more independent young than did control broods that began with the same number of eggs.
1987), and none has investigated the investment of parents in their offspring throughout the fledging period.
The eggs hatch in 16 days, and then both parents search frantically for food the next 24 days, during which fledging, the growing of feathers, occurs.
Officials with the fledging and anything-but-wealthy Italian space effort suggested that placing a seaborne launch system off the Kenyan coast could eliminate the cost of the "dogleg" maneuver necessary to put payloads into equatorial orbits from higher latitudes.
The protection of the peregrine falcon nesting territories at Precipice, Valley Cove, and Jordan cliffs resulted in the fledging of five chicks this year compared to 11 last year.
We classified nests as failed if no nestling was in or near the nest >2 days before the expected date of fledging. Nests were classified as depredated if all eggs or nestlings disappeared.
And they produced an average of almost one extra chickper nest that made it to fledging.
Monitoring of newly hatched broods is intense for the first 6 to 8 hours of life, but later the broods are monitored only every 2 to 3 days until fledging. Management of piping plovers includes control of predators such as red foxes, raccoons, gulls, and crows.