We studied the relationship among re-mating, site fidelity and breeding performance in the tree swallow Tachycineta bicolor using 16 y of data on reproductive biology in a population breeding in nest ...

1. We examined how mate and site fidelity varied with age, experience and sex, and how age, breeding experience, mate experience, site experience and sex affected annual reproductive success and ...

Researchers can now predict the number of offspring a bird will have based on its prolactin and corticosterone levels. Some animals produce more offspring than others. Hormones like prolactin and ...

A pair of tree swallows that survived the record-breaking mid-March blizzard south of us last spring got directly to work when they finally arrived. They chose one of the nest boxes I maintain at a ...

Before the mass-breeding programs of the early 20th century, turkeys took roughly 28 weeks to get to their full size, growing at an estimated rate of about 0.75 to 1 pound per week, according to one ...

Keep feeding the birds over winter. A new study shows for the first time that the extra food we provide garden birds in winter makes for a more successful breeding season. This research shows, for the ...

Now that spring is in the air, the UK is starting to see its summer visitors arriving. Ospreys are already back in their nests, chiffchaffs are singing their song to re-establish their territories, ...

Spring is one of the most important seasons to support the garden birds in your backyard. It's the time of year birds begin nesting and breeding, and they could do with the support of gardeners to ...