The biodiversity crisis is exacerbated by a growing human population modifying nearly three‐
quarters of the Earth's land surface area for anthropogenic uses. Habitat loss and …

Transitions between life history stages are fitness-limiting events that depend on
environmental and individual characteristics. For altricial birds, fledging from the nest is a …

A biased adult sex ratio (ASR) can influence cooperative breeding behavior if the bias limits
mating opportunities for the more abundant sex. We tested predictions associated with the …

We updated the list of species for which conspecific brood parasitism (CBP) has been
reported, and it contained 256 species. We used this list to examine the effects of four factors …

Modern genetic parentage methods reveal that alternative reproductive strategies are
common in both males and females. Under ideal conditions, genetic methods accurately …

Costs of conspecific brood parasitism (CBP) are expected to be influenced by a species' life
history traits. Precocial birds lay large clutches, and clutches that have been enlarged by …

Interspecific nest-site competition among secondary cavity nesters can lead to nest-takeover
events resulting in mixed broods. The nestlings of the smaller species in these mixed broods …

Secondary cavity-nesting species must find natural cavities or artificial nest boxes to
reproduce. Cavities are often limited, which results in intense interference competition …

Species that provide intensive parental care could suffer fitness costs associated with
conspecific brood parasitism. Here we evaluate the effect of conspecific brood parasitism on …

One of the richest opportunities for studying coevolution comes from obligate brood
parasitism, a unique reproductive strategy performed by only 1% of the world's bird species …