OOIR: Observatory of International Research

Papers

(The median citation count of Ardea is 1. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-05-01 to 2026-05-01.)

Article	Citations
Prioritizing Conservation and Research Effort for Poorly Known Species: The Buttonquails (Turnicidae) as a Study Case	19
A Successful Mixed Brood between Eurasian Nuthatches Sitta europaea and Eurasian Blue Tits Cyanistes caeruleus	18
The Fortunes of Migratory Birds from Eurasia: Being on a Tightrope in the Sahel	16
Factors influencing roost use by Short-toed Treecreepers Certhia brachydactyla at urban sites	14
Dads on Duty: First Account of Nest Sitting in Barnacle Ganders	14
Decline in the Numbers of Eurasian Oystercatchers Haematopus ostralegus on the Exe Estuary Special Protection Area	12
Autumn Migration of a Juvenile Hybrid of Red and Black Kite (Milvus milvus × M. migrans)	12
Foreword	12
To See, Hear and Speak: How Counts of Birds in Individual Trees Help Address the Environmental Causes of the Sahel	11
Molecular Methods to Study Great Cormorant Feeding Ecology	11
Reducing Fish Losses to Great Cormorants Using Artificial Fish Refuges: Refining Refuge Deployment Strategies	10
Studies of Food Ecology of Great Cormorant Phalacrocorax carbo in Relation to Water Transparency Require System-Adjusted Data: An Example from Two Polish Reservoirs	10
The Diet of the West African Crested Tern Unveiled by an Analysis of Otoliths Collected Over 20 Years along Its Main Breeding Sites	9
Granivorous Birds in the Sahel: Is Seed Supply Limiting Bird Numbers?	9
Distribution and Numbers of Arboreal Birds between the Hyper-Arid Sahara and the Hyper-Humid Guinea Forests	9
Ornithology from the Lakeshore	8
Unexpected Alliances: Same-Sex Parenting in the Black-Vented Shearwater	8
Seasonal Shifts in Habitat Choice of Birds in the Sahel and the Importance of ‘Refuge Trees’ for Surviving the Dry Season	8
Incubation Before Clutch Completion Predicts Incubation Time and Hatching Asynchrony in the Blue Tit Cyanistes Caeruleus	8
The Gap of Chad, a Dearth of Migratory Birds in the Central Sahel	7
Expanding East: Great Cormorants Phalacrocorax carbo Thriving in the Eastern Baltic and Gulf of Finland	6
Dynamics of Naïve White Storks Ciconia Ciconia Migrating at the Central European Migratory Divide during 1947–2018	6
Conspecific Density as a Driver of Offspring Body Condition in Three Cormorant Colonies in Denmark	6
First Record of an ‘Ino’ Colour Aberration in the European Pied Flycatcher Ficedula hypoleuca	6
Migrations, Destinations and Breeding of Eurasian Curlews Numenius arquata arquata that Spend the Non-Breeding Season in Northern Scotland	6

The Effect of Different Mammalian Predator Management Regimes on the Reproductive Success of Black-Tailed Godwits Limosa limosa limosa	5
Migration Patterns and Recorded Emigration of the Great Cormorant Phalacrocorax carbo sinensis in the Largest French Colony of Lac de Grand-Lieu: Density-Dependent Factors Operating at Different Time	5
Breeding Biology of the Chilean Elaenia Elaenia chilensis, a Long-Distance Migratory Passerine in South America	5
Key Habitat Factors of Breeding Birds in Agricultural Hedgerow Landscapes in East-Fryslân, the Netherlands, in European Perspective – Ecological Evaluation and Relation to Agri-Environmental Schemes	5
Fine-Scale Spatial Variation in Eurasian Kestrel Falco tinnunculus Diet in Southern England Revealed from Indirect Prey Sampling and Direct Stable Usotope Analysis	5
Selection by Birds of Shrub and Tree Species in the Sahel	5
Foraging Ecology of Red-Billed Tropicbirds on Saba, Caribbean Netherlands, during Early Chick-Rearing	4
On the Wintering Ecology of Montagu's Harriers in West Africa: Itinerancy in Relation to Varying Annual Environmental Conditions	4
Great Cormorants Phalacrocorax carbo in the Netherlands: Five Centuries of Protection Amidst Almost European-Wide Persecution	3
Distribution and Numbers of Ground-Foraging Birds between the Hyper-Arid Sahara and the Hyper-Humid Guinea Forests	3
Male-Specific Territoriality and Use of Specific Calls during the Non-Breeding Season in the Polygynous Eurasian Wren Troglodytes troglodytes	3
Determinants of Survival for Common Tern Chicks Sterna hirundo: The Importance of Hatch Order, Hatch Date and Other Factors across Three Decades	3
Ornithology from the Flatlands	3
Post-Breeding Distribution and Origins of Sandwich Terns Thalasseus sandvicensis in Danish Waters	3
Social Hierarchy within Communal Foraging Flocks of Great Cormorants Phalacrocorax carbo as Reflected by Differences in Prey Composition and Food Intake at the Roost	3
Source-Sink Relationship in a Metapopulation of Suburban and Rural House Sparrow Populations	3
Ornithology from the FlatlandsSocially Migrating Cuckoos? on Genes Being Just One of Many Resources Shaping the Individual Development of Migration	3
DNA Identification of a Putative Hybrid Azure Tit × Blue Tit	3
Winter Diet of Great Cormorants Phalacrocorax carbo in the River Geul, The Netherlands: The Importance of Common Small Riverine Fish Species	3
Breeding Biology of the White-Throated Cacholote Pseudoseisura gutturalis ochroleuca, an Endemic Bird of the Monte Desert	3
Frequent Use of Offshore Wind Farms in the Southern North Sea by Migrating Terns	3
Do Cormorants and Recreational Anglers Take Fish of the Same Species and Sizes?	3
Long-Term Changes in Winter Distribution of Danish-Ringed Great Cormorants	2
Variation in Migration Distance Does not Affect Arrival Date in the Subsequent Breeding Season of Dutch Barn Swallows Hirundo rustica	2
Foraging Behaviour of Nesting Grey Herons Inferred from PIT-Tagged Salmonid Fish	2
Does the Provisioning of Artificial Nest Cups and Nesting Structures Help House Martins Delichon urbicum?	2
The Timing and Duration of Snow Bunting Plectrophenax nivalis Primary Moult in High Arctic Northeast Greenland	2
The Diet of Two Sympatric Great Cormorant Phalacrocorax carbo Subspecies Wintering at Freshwater Fishery Sites in England and Wales	2
Diet Composition and Reproductive Performance in Central Europe's Last Gull-Billed Tern Population – a Long-Term Study	2
H5N1 Avian Influenza Outbreak Caused Massive Mortality of Chicks of Sandwich Tern Thalasseus sandvicensis in the Lagoon of Venice	2
Primary Moult of Eurasian Spoonbills Platalea l. leucorodia in the Wadden Sea in Relation to Age, Breeding and Migration	2
Presence of Mesopelagic Fish in the Diet of Two Sympatric Species of Storm Petrels	2
Seed Dispersal by an Invasive Exotic Bird in Europe	2
GPS-Tracking of Great Cormorants Phalacrocorax carbo sinensis Reveals Sex-Specific Differences in Foraging Behaviour	2
Time Shift in the Exploitation of Fish Stocks by Great Cormorants Phalacrocorax carbo at Lake IJsselmeer: How Wintering Birds began Competing for Fish with Breeding Conspecifics	2
Seed Dispersal by an Invasive Exotic Bird in Europe	2
The Annual Cycle, Breeding Biology and Feeding Ecology of the Lesser Black-Backed Gull Larus fuscus	2
Breeding Season, Clutch Size and Breeding Success in the Pallid Swift Apus p. pallidus in Southern Iran	2
Reproductive Ecology of the Mountain Chiffchaff Phylloscopus sindianus on the Eastern Pamir Plateau	2
Clutch Size and Breeding Ecology of Multi-Brooded European Stonechats Saxicola rubicola in Acidic Inland Heathlands and Calcareous Coastal Dunes	1
The Little Owl: Population Dynamics, Behavior and Management of Athene noctua.	1
Climate Effects on Breeding Phenology of Peregrine and Lanner Falcons in the Mediterranean	1
Population Status, Breeding Biology and Diet of Norwegian Great Cormorants	1
The Movements of Icelandic Breeding Purple Sandpipers Calidris maritima Outside the Breeding Season	1
Phylogeny and Conservation Status of Mascarene Aerodramus Swiftlets	1
Nestling Growth Pattern and Breeding Biology in the Eurasian Nuthatch Sitta europaea	1
Habitat Specialisation Affects Fitness of the Marine and Continental Great Cormorant Subspecies in a Recently Evolved Sympatric Area	1
Brood Sex Ratio in European Honey Buzzards Pernis apivorus is Related to Spring Phenology	1
Reflections: What Wildlife Needs and How to Provide It.	1
Second Breeding Attempts of Sandwich Terns in a Different Colony: Facilitated by Breeding Asynchrony between Colonies?	1

Flight Interruptions by European Western Marsh Harriers Crossing the Sahara Desert	1
Savannah Trees Attract More Migratory Bird Species Than Residents, But Why?	1
First Report of Polymelia in a Passerine Bird, the Pied Flycatcher	1
Variation and Acoustic Stability in the Call Duration of Tawny Owl Strix aluco Males	1
Natural Regulation of the Baltic Population of the Great Cormorant Phalacrocorax carbo sinensis: The Interplay between Winter Severity and Density Dependence	1
Responses of Yellowhammer Emberiza citrinella, Pine Bunting E. leucocephalos and Their Hybrids to Playbacks of Con- and Heterospecific Songs and Calls in a Hybrid Zone	1
Ornithology from the Lakeshore	1
Food Choice and Prey Selection by Great Cormorants Phalacrocorax carbo in a Shallow Coastal Zone in the Dutch Delta Area: Importance of Local Flatfish Stocks	1
There must be Some Kind of Way Out of Here: Towards ‘Reframing’ European Cormorant-Fisheries Conflicts	1