Breeding and Life-cycles

Dive into the reproductive strategies and life stages of birds — from courtship displays and nest building to egg laying, chick development, and parental care. This section explores the diverse breeding systems, seasonal cycles, and survival challenges birds face throughout their lives, offering insight into how life begins, unfolds, and is sustained in the avian world. Photo by Deborah Bifulco.

Why Wait to Grow Up? Shorebirds' Delayed Maturity Tied to Coastal Living
Often seen roosting or foraging near coastlines, Oriental Pratincoles (Glareola maldivarum) are among the species analysed in the study. Their life-history strategies reflect the behavioural demands of complex habitats — an important factor in the timing of maturity. © Arkajit Chakraborty

Why Wait to Grow Up? Shorebirds' Delayed Maturity Tied to Coastal Living

Shorebirds that winter along dynamic coastlines delay their first return to breed, a strategy linked not to body size, but to the behavioural demands of tidal habitats — revealing new insights into how environment shapes avian life-history timing.
Breeding and Life-cycles
Gyorgy Szimuly

Gyorgy Szimuly
Same Species, Different Clocks: Migration That Shapes Reproductive Timing in Birds
A Dark-eyed Junco (Junco hyemalis oreganus) in the fresh light of spring. While this species isn’t featured in the study, it serves as a reminder of how migration and seasonal timing weave together in the lives of birds across latitudes. © Ilya Povalyaev

Same Species, Different Clocks: Migration That Shapes Reproductive Timing in Birds

Why do some birds get ready to breed while others are still preparing to migrate—despite living in the same place? The answer lies in how they sense time.
Breeding and Life-cycles
The Ornithologist

The Ornithologist
The Extreme Breeding Ecology of Cliff-nesting Swifts
A Common Swift glides through golden evening light – briefly grounded in its breeding season before returning to a life spent almost entirely in the air. © Marcin Sidelnik

The Extreme Breeding Ecology of Cliff-nesting Swifts

Cliff-nesting swifts defy gravity – and ecological convention. This article explores how these aerial specialists adapted to breed in some of the planet’s most inhospitable vertical landscapes.
Breeding and Life-cycles
The Ornithologist

The Ornithologist