ROBOTINK PROJECT

The project "Robotic experiments to test genomic combinations for rhythm and feather colour in

tinkerbird preference" will investigate the combination of genes underlying multimodal signals important in sexual selection and speciation by determining which combinations of genes underly multimodal acoustic and visual signals and how are those multimodal signals perceived. We will test responses of birds in experiments using song playback and robotic 3D printed models with different combinations of vocal rhythm speed, song frequency and forecrown colour to determine their relative importance in species recognition and mate choice.

Schematic of the experimental design, with two robotic models and song playback, with responses recorded on a digital recorder and microphone and on video.

We have performed some pilot experiments with prototypes of the robotic tinkerbird models and will improve the design of the models for the experiments.

Video of tinkerbot prototypes used in pilot experiments

We are in the process of iterating the design of the models, e.g. to improve the chest movement to better replicate how tinkerbirds expand their chest while they sing. Experiments will be performed during the forthcoming breeding season, from November 2025 to February 2026 in South Africa and Eswatini.