annual cycle Archives - Page 2 of 2 - British Ornithologists' Union

Worried about the Greenland White-fronted Goose

By Jente Ottenburghs (he/him)|2023-02-04T11:34:43+00:009 Feb 2023|adult survival, agriculture, annual cycle, Bayesian modelling, breeding success, hunting pressure, Migration, overwintering, population dynamics, ringing, waterbirds|

Why has this goose population declined since 2000?

Moult terminology

By Yosef Kiat|2023-01-27T14:17:09+00:006 Feb 2023|annual cycle, avian biology, early-career researcher, ECR, feathers, IBIS, migrant, Migration, moult, passerines, People|

Let’s make it simpler!

Can nest reuse be risky?

By Thomas Mérő|2023-01-23T10:42:19+00:0023 Jan 2023|annual cycle, behaviour, Breeding, breeding biology, breeding success, brood parasitism, cavity nesting, fieldwork, fledglings, natural history, nest predation, nesting, nesting success, parasites, parasitism, passerines|

Rare observations of nest-reuse in an open-cup nesting European passerine

Split flight feathers moult

By Yosef Kiat|2022-12-21T12:02:34+00:009 Jan 2023|Africa, annual cycle, avian biology, early-career researcher, ECR, feathers, IBIS, migrant, Migration, moult, passerines|

A response to time constraints during the main moult period

Where do breeding Procellaria petrels forage?

By Lily Bentley|2022-12-08T13:00:56+00:0012 Dec 2022|annual cycle, breeding biology, early-career researcher, ecology, ECR, foraging, habitat selection, IBIS, life history, monitoring, movement, movements, Oceanography, population dynamics, Seabirds, storm-petrels|

Travelling thousands of kilometres to find lunch

Fidelity or divorce? The dilemma of Jaegers

By Yannick Seyer|2022-12-05T12:01:41+00:008 Dec 2022|adult survival, annual cycle, breeding biology, colour ringing/banding, early-career researcher, ecology, ECR, fieldwork, IBIS, life history, mark‐recapture, monitoring, mortality, movements, pair-bond, phenotypic variation, population dynamics, reproduction, Seabirds, site fidelity, Tundra|

How faithful are Arctic migratory seabirds to mates and breeding sites?

A migratory food web

By Jente Ottenburghs (he/him)|2022-08-25T08:04:36+00:0025 Aug 2022|annual cycle, bird movements, Conservation, diet composition, DNA sequencing, Migration, predation, raptors|

Merlins feed on migratory songbirds to fuel their long-distance migration.

Capercaillies and climate change

By Jente Ottenburghs (he/him)|2022-04-04T14:10:19+00:007 Apr 2022|annual cycle, behaviour, Breeding, breeding success, climate change, forest birds, Galliformes, phenology, reproduction, temperature|

Earlier lekking activities enable these birds to cope with changing weather patterns.

The big journey of the little stint

By Jente Ottenburghs (he/him)|2021-05-02T11:53:35+00:006 May 2021|annual cycle, Migration, shorebirds, waders|

How do these small waders manage to migrate between South Africa and Siberia?

Don’t move. Winter is coming.

By Ron Efrat|2020-10-09T15:12:57+00:0026 Aug 2019|annual cycle, flight, gps tags, Migration, movements, short-distance migration, soaring birds|

What do Dalmatian Pelicans do when it gets cold?