Once stage-specific daily survival probabilities and their standard errors have been estimated, nesting
success over the entire nesting
Also 82% of the nongame birds nesting
in those grass edge habitats in Illinois were red-winged blackbirds whereas red-winged blackbirds in this study made up only 36% of the nesting
First, the Thomson Causeway Recreation Area contains a campground with high levels of nonresearch human activity around nesting
cavities were found in nine tree cavities, in walls and in metal boxes (Table 1).
Daily nest survival of yellow-billed cuckoos was not related to any vegetative variable, being only positively related to advancement of nesting
Several authors have predicted that this vast region contains a substantial amount of potential nesting
habitat for Kittlitz's Murrelets (e.
Given the high nest-site fidelity observed at other Black Swift nesting
sites in North America, historical accounts of Black Swift nest sites, even vague accounts, should not be dismissed.
During our study, the wooden nest boxes were made available for a full nesting
season only in 2013.
In the first step we evaluated temporal patterns within the nesting
season by creating models with the following temporal trends: (a) constant, which corresponds to Mayfield's nest success; (b) linear; and (c) quadratic trend.
birds employ a range of anti-predator strategies including crypsis (hiding the nest and its contents) and active defence, including aggression and distraction (Byrkjedal 1989; Geering et al.
activity observed in 2007-2009 on two oxbows (Oxbow 1 and Oxbow 2) at Tishomingo NWR showed that nests made by the reintroduced females tended to be clustered, within and among years.
Hence the present study was designed to investigate the breeding biology by studying clutch size, hatchling success and fledgling rate, characteristics of nesting
site and nest structure of red- vented bulbul in the areas of Rawalpindi and Islamabad.