• https://www.scientificamerican.com/article/using-pigeons-to-diagnose-cancer/
• https://www.science.org/content/article/pigeons-spot-cancer-well-human-experts
• https://onlinelibrary.wiley.com/doi/abs/10.1111/bioe.12959
• https://aws.amazon.com/what-is/neural-network/
• https://www.cs.toronto.edu/~lczhang/360/lec/w01/pigeon.html