Distribution of the dates of laying, hatching, and fledging of the first egg/nestling in 929 Tree Swallow clutches among 400 nest boxes in the study area for three years (2006–2008).
This table contains information on the condition of nestlings (mass, wing, age, etc…) in relation to annual breeding parameters (1 or 2 annual clutch, laying date, clutch size, number of fledglings, …
Livestock grazing can affect habitat structure and availability of arthropod prey for grassland birds, and ultimately determines habitat quality. The habitat quality may affect breeding strategies (e.
