Mission
PatchBird Surveys aims to transform structured bird observations into an early-warning system for ecological change, empowering participants to generate consistent data that can guide timely, evidence-based conservation. Our vision is a future where bird populations thrive, habitats are protected, and decisions are informed by continuous, locally grounded monitoring at global scale.
The Role of Relative Abundance
PatchBird Surveys place relative abundance at the heart of its monitoring approach. Relative abundance refers to the number of individuals detected during a standardised survey at a fixed location and within a defined timeframe. Because survey method and duration are held constant, relative abundance allows comparisons across time and space even when absolute population counts are impractical.
While relative abundance does not yield exact counts of total population size, it is a valuable proxy for detecting trends, distribution shifts, and changes in community composition—particularly across broad geographic extents where intensive census methods are not feasible. Variability in detectability due to habitat structure, weather, species behaviour, or observer experience may remain; consistent protocols and analytical methods can help mitigate, but not entirely eliminate, these influences.
As with all field-based bird surveys, detection rates may vary due to factors such as habitat structure, weather conditions, species behaviour, and observer experience. These sources of variation are reduced—but not eliminated—through standardisation, and may be further addressed during analysis as datasets grow.
What the Data Can Tell Us?
Identifying Priority Areas
Mapping relative abundance patterns at fine spatial and temporal scales allows conservationists to identify habitats of particular importance for breeding, migration, and overwintering. By comparing repeated, standardised surveys across locations, areas that consistently support higher concentrations of birds—or show disproportionate seasonal use—can be distinguished from the surrounding landscape. These insights support strategic decisions about habitat protection, restoration, and long-term stewardship.
Detecting Population Trends
When gathered consistently over time, relative abundance data can indicate whether species are increasing, decreasing, or stable within surveyed locations. Repeated surveys form the basis for detecting temporal patterns, providing early indications of potential population change that can prompt further investigation or conservation action.
Understanding Seasonal Dynamics
Seasonal fluctuations in relative abundance illuminate migration timing, habitat use, and species turnover. These patterns contribute to understanding annual life-cycle phases and can inform targeted conservation actions during sensitive periods such as migration or breeding.
Assessing Conservation Effectiveness
Changes in relative abundance following management or restoration activities offer a quantitative way to evaluate whether interventions correlate with bird responses, building evidence for adaptive, evidence-based strategies.
Data Quality and Validation
PatchBird Surveys prioritises data quality through standardised methods and integration with established review systems. Standardising survey duration and location reduces variation due to effort, while eBird’s validation filters and community review help flag unusual records for further scrutiny.
As datasets grow, additional quality-control and verification procedures may be applied to strengthen reliability, including expert review of outliers, cross-validation with other monitoring datasets, and analytical checks for consistency.
Data Analysis and Outputs
PatchBird data are analysed to explore spatial and temporal patterns in relative abundance. Analyses may include descriptive summaries, trend indicators, and spatial visualisations that help interpret ecological patterns. Outputs are designed to be scientifically useful while remaining accessible to participants and partners.
More advanced analyses—such as statistical models that address detection variability or integrate PatchBird data with other monitoring sources—are part of ongoing methodological development as the dataset grows.
ARE YOU A TRAVELLING BIRDER?
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Objectives
Building on the central role of relative abundance as an early indicator of ecological change, PatchBird Surveys aims to translate structured observations into meaningful conservation outcomes. To achieve this, the programme is guided by the objectives outlined below.
Standardised Monitoring Framework
Apply a grid-based approach using the Universal Transverse Mercator (UTM) system to ensure that relative abundance data are collected consistently across regions, habitats, and seasons—creating a globally comparable dataset.
Comprehensive Data Integration and Accessibility
Integrate standardised eBird observations into structured analytical workflows to generate high-resolution abundance maps, trend summaries, and interpretable outputs that support conservation practitioners, researchers, and decision-makers.
Why Participate?
Bird populations are changing rapidly, and structured, repeatable observations contribute to early insight into these changes. Each checklist adds value by strengthening spatial and temporal coverage, revealing patterns that isolated records cannot show.
Participation sharpens birding skills, deepens understanding of avian ecology, and connects observers with a global community of contributors. PatchBird also encourages exploration of under-recorded areas, enriching both scientific coverage and personal experience.
Your Role in Science and Conservation
By documenting birds in your area using a consistent method, you provide data that help scientists detect change, identify emerging ecological threats, and guide effective conservation strategies. Your participation creates tangible impact both locally and at larger scales.
Get Involved/How to Get Started
Choose Your Survey LocationTell us the general area where you plan to conduct your surveys—your neighbourhood, favourite birding site, or a nearby natural area. We will share the corresponding UTM grid reference and instructions for choosing accessible, repeatable survey points.
Join eBirdIf you haven’t already, create a free eBird account. eBird provides the tools needed to record and submit your observations to the global database.
Conduct Standardised SurveysVisit your assigned grid location and conduct a 15-minute stationary count, recording all species seen or heard during the period. Submit your checklist through eBird and share it with the PatchBird Surveys account.
Contribute and CollaborateExplore under-reported areas to help fill spatial gaps in global monitoring. Encourage others to join and expand the network, amplifying the impact of our collective observations.
Data Management & Purpose
All observations collected through PatchBird Surveys are submitted directly to eBird, ensuring data are securely stored, globally accessible, and integrated into one of the world’s leading biodiversity databases.
PatchBird does not operate as a standalone data repository. Instead, the initiative focuses on analysing submitted checklists to understand spatial coverage, survey effort, participant activity, species trends, and seasonal patterns. These analyses serve several key purposes:
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Provide timely visualisations and feedback that keep contributors informed and aware of the value of their observations
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Identify under-surveyed areas and guide future survey priorities
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Highlight emerging patterns that may warrant further scientific investigation or targeted monitoring
Looking ahead, PatchBird seeks to strengthen collaboration with academic institutions and conservation organisations to increase the scientific utility of these data and contribute to evidence-based conservation planning.
The PatchBird Initiator
PatchBird Surveys was initiated by Gyorgy Szimuly, a Hungarian ornithologist with longstanding involvement in bird monitoring and citizen-science coordination. His work includes contributions to population studies and survey coordination since the early 1990s.
In 2014, he founded World Shorebirds Day and the Global Shorebird Counts, which united volunteers worldwide to document shorebird populations across seasons. These efforts reflect a long-term commitment to bird monitoring, collaboration, and open participation.
As programme coordinator, his role is to maintain a clear, standardised framework that enables birders to contribute meaningful data through existing platforms, particularly eBird, with an emphasis on collective effort, data quality, and long-term conservation value.
