Call for Collaboration: Unpublished Data on Birds of Prey Color Polymorphism Dear EvolDir community members, We are reaching out to invite you to participate in a project focused on a systematic review and meta-analysis of color polymorphism in birds of prey. We are seeking collaborators who can share unpublished data on the distribution and frequency of color morphs in natural populations of birds of prey. The goal is to expand the existing dataset, which currently includes data from published peer-reviewed articles and publicly accessible datasets. The data you contribute should meet the following criteria: 1. Unpublished Data: The data must be unpublished and not yet publicly available or published in non-indexed outputs such as preprints, pre- registrations, etc. 2. Morph Distribution: It should contain information about the presence(and if available abundance/frequency) of different morphs within populations. 3. Trait Association: The data may include information on the relationship between specific morphs and individual traits. The list of traits is open but may include factors such as life history success, overall condition, fitness, immune response, foraging effectiveness, gene expression, behavior, and more. However, data concerning exclusively morph distribution/abundance/frequency also will be valuable and hence additional traits are optional. Researchers who contribute suitable data will be offered co-authorship on any resulting research papers. If you are interested in contributing to this project, please contact me at: pawel.podkowa@uj.edu.pl Thank you for considering this opportunity. Best regards, Pawel Podkowa, PhD Szymon Drobniak, PhD Institute of Environmental Sciences Jagiellonian University, Kraków, Poland Pawe³ Podkowa (to subscribe/unsubscribe the EvolDir send mail to golding@mcmaster.ca)