Individual identity information is obscured post laboratory colony assembly in black-capped chickadees

We hypothesized that lab-housed black capped chickadees would be able to discriminate calls between two established lab colonies, and would perceive a change from pre-to-post colony assembly, as an indication of vocal plasticity. While birds did not demonstrate colony-based discrimination, we suggest the birds instead employed individual-based discrimination. Furthermore, while high individual discrimination accuracy was maintained for pre-assembly calls, discrimination accuracy dropped significantly for post-assembly calls. We suggest that vocal plasticity, specifically call convergence, altered the acoustic features of individuals' calls, impeding individual discrimination. Attached are each bird's data for each day of the study. Within each bird's folder (bird's ID and group denoted as G1, G2, or Pseudo in first file within each folder), TXT. files are named by date and stage.

本研究假设，实验室饲养的黑色冠带山雀能够区分来自两个既定实验室群体的叫声，并将群体组建前后的变化感知为发声可塑性的指标。尽管鸟类并未展现出基于群体的区分能力，但我们提出鸟类可能采用了基于个体的区分策略。此外，尽管在组建前，个体区分的准确性保持较高，但在组建后，区分准确性显著下降。我们提出，发声可塑性，尤其是叫声收敛，改变了个体叫声的声学特征，从而阻碍了个体区分。附上了每只鸟类在整个研究期间每天的数据。在每个鸟类的文件夹中（鸟类ID和群体标记为G1、G2或Pseudo，位于每个文件夹中的第一个文件），TXT文件以日期和阶段命名。