Meet our grantees
Wild Animal Initiative funds academic research on high-priority questions in wild animal welfare.
The goal of our grants program is to fund research that deepens scientific knowledge of the welfare of wild animals in order to better understand how to improve the welfare of as many wild animals as possible, regardless of what causes the threats to their well-being.
We showcase our grantees and their projects here and continuously update this page as new projects are added.
Validating behavioral, acoustic, and physiological indicators of welfare in urban birds
Grantee: Miriam Soledad Vazquez
Institution: Universidad Nacional del Sur, Argentina
Project summary
This project will evaluate whether behavioral, acoustic, and physiological indicators consistently reflect welfare-relevant experiences in two urban thrush species. Welfare will be assessed by combining focal behavioral observations (vigilance, aggression, displacement, foraging activity, and tolerance of conspecifics and heterospecifics), passive acoustic monitoring (focal activity rates and calling patterns), and feather glucocorticoid analyses across urban sites that differ in vegetation cover and human disturbance. These indicators will be interpreted together to evaluate whether they show concordant, biologically meaningful responses across urban environments, while recognizing that different indicators may capture different temporal or contextual dimensions of affective state and welfare.
Assessing the Impact of Ectoparasites on Nestling Welfare: Validating Behavioral and Physiological Indicators in Darwin’s Finches
Grantee: Sabine Tebbich
Institution: University of Vienna
Project summary
Nestling finches are particularly vulnerable to blood-sucking ectoparasites because they lack the ability to preen, dust-bathe, or escape infested nests. Invasive parasites are especially detrimental to bird welfare because naïve hosts lack behavioral adaptations such as nest sanitation or preening, and hosts often suffer from exceptionally high parasite loads. This project aims to integrate behavioral (breathing rate and sleep duration) and physiological (haematocrit, baseline corticosterone, oxidative stress and telomere length) indicators to assess the welfare impact of the bloodsucking larvae of the avian vampire fly (Philornis downsi) on nestlings of Galápagos finches.
Examining mechanistic relationships between metabolic rates, wild bird welfare and impacts of selective logging on eastern Himalayan birds
Grantee: Akshay Bharadwaj
Institution: Indian Institute of Science
Project summary
Animals must balance energy spent with energy consumed, and can only persist in habitats that allow for this balance. All warm-blooded animals have a Basic Survival Cost (BSC) required for basal metabolism and thermoregulation. This project aims to understand how basic survival costs (BSC) affect wild bird welfare in the Eastern Himalayas. Using a combination of thermal imaging, respirometry, and ambient-temperature humidity data, we will estimate BSC in free-living birds across habitat gradients. Subsequently, the project will relate the BSC to multiple welfare indicators, allowing a triangulation of a bird's lived experience. By linking energy metabolism with welfare outcomes, this work will provide a novel, mechanistic perspective on wild animal welfare in an understudied tropical system.
Swan Lake: Assessing the welfare of urban mute swans
Grantee: Irena Uzelac
Institution: Animal Rescue Serbia
Project summary
This project investigates how human-provided food, environmental conditions, and injuries affect the welfare of mute swans in urban Belgrade. The project will assess welfare using indicators such as body condition, visible deformities, injury rates, and behavior patterns like foraging and aggression. By comparing sites with different levels of human feeding and variations in temperature, the project aims to understand how these factors shape swan health and behavior. Reproductive success and juvenile survival will also be monitored to evaluate long-term welfare outcomes. A mix of behavioral observation, environmental monitoring, and welfare scoring will be used, integrating both natural and anthropogenic stressors. The ultimate goal is to develop ecologically valid welfare indicators that reflect real-world challenges faced by urban wildlife.
Assessment of welfare impacts of parasites and pathogens on migratory flamingos among Salt Lakes of East Africa
Grantee: Robert Modest Byamungu
Institution: Sokoine University of Agriculture
Project summary
This project will investigate the effects of parasites and pathogens on the welfare of two flamingo species ― the greater flamingo and the lesser flamingo — in the Salt Lakes of East Africa using non-invasive methods. To achieve this, the project will establish two sites: an experimental site and a control site. At both sites, it will (i) estimate parasites and pathogens loads, (ii) assess stress behaviour, (iii) quantify stress physiology and, (iv) monitor food resources of flamingos. Welfare will be assessed through behaviors (e.g., body scratching and feathers plucking), as well as signs of stress (e.g., fecal cortisol levels). The project helps provide an understanding on how environmental pressures impact wild animals' quality of life.
Between freedom and security, what makes a feral pigeon happier?
Grantee: Brandon Mak
Institution: Technical University of Munich
Project summary
Feral pigeons in Germany are subject to the Augsburg model of non-lethal population control, which involves attracting them to breed in dovecots where food and nest sites are provided, and their eggs exchanged with dummies. Others are captured and housed in aviaries under similar conditions. This project investigates the welfare implications of Germany’s non-lethal population control strategies. This is done by comparing the stress profiles of feral pigeons living “wild” in the streets, free-living pigeons breeding and feeding in dovecots, and formerly free-living pigeons translocated into aviaries. Fieldwork will be conducted to weigh pigeons (body mass measurement), collect egg and feather samples from their nests (corticosterone concentrations), and observe their behavior (locomotion and aggression).
Validating the use of cognitive bias to assess affective valence in wild bird populations.
Grantee: Oliver Burman
Institution: University of Lincoln
Project summary
The goal of this project is to develop and validate a cognitive bias test for assessing the welfare of woodland birds that does not require any training stage, and instead takes advantage of innate attraction and aversion to stimuli that resemble preferred or noxious prey (with a range of likeness accuracy, based on the principle of imperfect Batesian mimicry). Continuing the theme of exploiting natural variation, the project will use spatial variation in numerous components of habitat preferability that can be assumed to directionally affect welfare — such as food abundance and shelter — as natural experiments to validate their cognitive bias tests.
Social connections and their welfare implications in the wild
Grantee: Alex Thornton
Institutions: University of Exeter, University of Bristol
Project summary
This project seeks to understand the relationship between welfare and social interactions in wild bird populations. Using historical data, the researchers will also seek insight into how welfare varies among individuals in relation to the social system, early-life experiences, and interactions among individuals. They will also investigate whether social systems might play a role in helping to mitigate some of the negative anthropogenic impacts on welfare.
Thermal imaging as a non-invasive welfare assessment tool for tracking the impact of environmental stressors across wild animal populations
Grantee: Ross MacLeod
Institution: Liverpool John Moores University
Project summary
This project aims to test and validate a standardized multi-species approach to monitoring physiological stress in wild birds by using thermal imaging cameras to measure the animals’ body surface temperature, which could enable tracking of chronic stress in wild populations facing environmental stressors. Building on pilot work, the project will focus on wild bird populations to develop a standardized thermal imaging methodology capable of monitoring surface temperature of a wide range of wild animals. The methodology will be validated using bird communities visiting 54 standardized feeding and drinking stations spread across the UK, to quantify how changes in surface temperature are linked to starvation risk, predation risk, and human disturbance.
Developing an approach for assessing the welfare of wild birds through the use of bioacoustics analysis
Grantee: Luiza Figueiredo Passos
Institution: Liverpool John Moores University
Project summary
Vocalization analysis has been used to monitor the welfare of farmed animals and animals in laboratories, but lacks validation for wild animals. This project will use passive acoustic monitoring to record wild bird calls throughout the UK. It will identify vocal patterns and chorus characteristics related to various environmental risks that can be used to infer the welfare status of local bird populations across multiple environments. The focal species will be house sparrows, who have undergone a massive population decline and may be facing welfare challenges. Validating acoustic monitoring as a tool for non-invasive welfare monitoring in the wild for the first time will provide a method that could be used to monitor the welfare of wild birds globally.