When Can a Bird Afford to Moult?
Common Bulbuls can breed year-round, yet their moult remains strongly seasonal and responsive to body condition and diet. / Los bulbules naranjeros pueden reproducirse durante todo el año, pero su muda sigue siendo marcadamente estacional y responde a la condición corporal y a la dieta. © Jeff Maw
Conceptual Notes Avian Diet

When Can a Bird Afford to Moult?

In Common Bulbuls, the conditions associated with starting moult differ from those associated with completing it quickly. An experiment in Nigeria shows how body condition and diet shape different stages of feather replacement.

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How European Is the European Roller?
European Roller in Hungary — a bird still closely associated with Europe by name, even as much of its population and range now lie far beyond the continent’s western edge. © Attila Szilágyi

How European Is the European Roller?

Conceptual Note: This piece sits deliberately between observation and explanation: it outlines what is currently supported by evidence, then turns to the not knowing that remains — treating uncertainty not as a failure of understanding, but as a necessary part of how knowledge advances. The European Roller carries one of the most self-assured names in ornithology. It sounds precise, settled, geographically honest. Yet the bird it describes has always been only partly Eu
Conceptual Notes
Gyorgy Szimuly

Gyorgy Szimuly
Is Woodpecker Drumming More Than Noise?
Syrian Woodpecker – Drumming is one of the most conspicuous signals in a woodpecker’s behavioural repertoire, yet its evolutionary role is often taken for granted — recognised immediately, but rarely interrogated in the way birdsong has been. © Pavel Štěpánek

Is Woodpecker Drumming More Than Noise?

Conceptual Note: This piece sits deliberately between observation and explanation: it outlines what is currently supported by evidence, then turns to the not knowing that remains — treating uncertainty not as a failure of understanding, but as a necessary part of how knowledge advances. The forgotten song Among birds, few behaviours are as immediately recognisable as the drumming of a woodpecker. Long before the bird itself is seen, the rapid, percussive burst carries
Conceptual Notes
Gyorgy Szimuly

Gyorgy Szimuly
Three Wheatears, Three Routes into Africa
Pied Wheatears breeding at the western edge of their vast Eurasian range take a surprisingly direct migration route through Anatolia and the Arabian Peninsula to non-breeding grounds in Somalia. / Las collalbas pías que se reproducen en el extremo occidental de su extensa área de distribución euroasiática siguen una ruta migratoria sorprendentemente directa a través de Anatolia y la península arábiga hasta sus zonas no reproductoras en Somalia. © Ohad Sherer

Three Wheatears, Three Routes into Africa

Three closely related wheatears leave southern Europe for different parts of Africa. Tracking birds from Spain, Greece and Romania reveals contrasting migration routes and places Eastern Black-eared Wheatears more than 1,000 kilometres beyond their previously described non-breeding range.
Movement and Distribution
Gyorgy Szimuly

Gyorgy Szimuly
Six Years After First Breeding, Alpine Swifts Are Colonising Hungary
The Alpine Swift was considered a rare visitor to Hungary until breeding was first confirmed in 2020. Six years later, it is breeding in several Hungarian cities, and its numbers continue to grow. / El vencejo real se consideraba un visitante raro en Hungría hasta que se confirmó por primera vez su reproducción en 2020. Seis años después, se reproduce en varias ciudades húngaras y su población sigue creciendo. © James Hoagland

Six Years After First Breeding, Alpine Swifts Are Colonising Hungary

Six years after Alpine Swifts first bred in Hungary, their numbers are increasing and new breeding sites are appearing. What began as an exceptional event is starting to look like an established population.
News
Gyorgy Szimuly

Gyorgy Szimuly
Do GPS Tags Affect Small Shorebirds?
Advances in lightweight GPS technology are allowing researchers to study the movements of even small shorebirds like the Kentish Plover (Anarhynchus alexandrinus) while carefully assessing the welfare implications of tagging. © Ayuwat Jearwattanakanok

Do GPS Tags Affect Small Shorebirds?

Solar-powered GPS tags are opening new possibilities in shorebird research — but how close are we to the limits of what small birds can carry without consequence?
Fieldwork and Technology
Gyorgy Szimuly

Gyorgy Szimuly
The Art of Recognition: Firefinch Reframes the Path to Becoming an Ornithologist
Unlike photography, illustration allows repeated field impressions to be compressed into a single scene — combining posture, behaviour, habitat, and the way a species is most often remembered by observers in the field. Cotton Pygmy Geese illustrated by Faansie Peacock for Firefinch. © Firefinch / Faansie Peacoc

The Art of Recognition: Firefinch Reframes the Path to Becoming an Ornithologist

Birding apps usually promise speed, certainty, and instant answers. Firefinch moves in another direction entirely – towards attention, illustration, and the slower process of learning how to truly recognise birds.
Fieldwork and Technology
Gyorgy Szimuly

Gyorgy Szimuly