Washington has been leading Wildlife and Birding Tours in Kenya, Tanzania, Uganda and Rwanda for many years. He has a taste for everything in nature, from the small to the big and everything in between. His education background is in Environmental Science (BSc.), Animal Ecology (MSc.) and Animal Ecology (PhD.). He has continued to enrich his knowledge through many trainings, including a Certificate course in Fundamentals of Ornithology and a Certificate course on the Biology of Amphibians and Reptiles. He is a member of the Kenya Professional Safari Guides Association (KPSGA). He was awarded the African Sustainable Tourism Fellowship Award in 2016. He co-authored the Guidebook to the Birds of Dakatcha Woodland IBA. He wrote the first Checklists to the Birds of Eburu Forest, and the Birds of Kenyatta University. He founded the Kenyatta University Birding Club in 2014. Over the years, he has worked and interned with many organizations, including the National Museums of Kenya, Nature Kenya, National Environment Management Authority, Water Resources Management Authority and Giraffe Center. He previously served as the Manager for the Kenya Bird Map Project. He previously served as the Chairperson to the Kenya Herpetofauna Working Group and is the current Chairperson to the East Africa Rarities Committee. He is also a member of the Southern African Herpetologists platform.