Implementing a citizen science bird monitoring project in the Grampians/Gariwerd National Park, Victoria, Australia

Abstract

ABSTRACT Global bird populations are threatened by ongoing habitat loss and climate change. Inconsistent and short-term funding of faunal surveys in Australia makes population and distribution changes difficult to detect. To meet this challenge, alternative methods of supplementing regular surveys by professional ornithologists have been proffered, including surveys by trained citizen scientists. Here we outline the development, implementation and assessment of the Great Gariwerd Bird Survey (GGBS), a citizen science (CS) monitoring project designed to address long-term management questions in vulnerable Stringybark Heathy Woodland in Grampians/Gariwerd National Park. Forty volunteers that met appropriate criteria were selected and trained in practical 10-week/40-h courses. We assessed data from 288 2-ha/20-min surveys undertaken in autumn and spring 2021 at 36 sites, ran workshops to improve surveyor skills and data quality and assessed trainee experiences and program content through online anonymous surveys. Concurrent professional field ornithologist surveys enabled cross validation of CS surveys. Overlapping species accumulation curves for professional and citizen scientist surveys reflected very high correlations for site species diversity (r = 0.836) and abundances (r = 0.768). In autumn, the professional surveyor recorded significantly more species and birds than CS surveyors. Additional training in the identification of cryptic birds and challenging calls partially addressed the numerical differences in the following spring survey. This project demonstrates the potential for valuable long-term ecological data collection by well-trained citizen scientists with benefits to community environmental knowledge and participation despite some manageable obstacles. Participant surveys showed highly positive program perceptions, reflected by ongoing involvement in the GGBS.