Promotional graphic for the BHL at 20 Anniversary Series featuring the title “Osbert Salvin’s Central American Field Diary” over a background of a handwritten page with a painted illustration of a bird’s head and leg, alongside a “BHL 20” anniversary logo.

Handwritten notes. Hand-painted birds. A 19th-century field diary that shaped one of the most ambitious natural history works ever published.

Explore Osbert Salvin’s Central American field diary in our #BHLat20 series. 🧪📖🐦🌎

🔗 blog.biodiversitylibrary.org/2026/04/salv...

An historic illustration of bright red, yellow, and pink flowers.

🎉 To celebrate BHL’s 20th anniversary, we’re inviting our community to help sustain and strengthen it.

If BHL supports your work or curiosity, please consider supporting it in return.

👉 Support BHL’s next chapter: ancrywkv.donorsupport.co/page/BHLat20

#BHLat20 #ILoveBHL 🧪 🌏 📖 🌱

Happy 20th Anniversary!
As a taxonomist, I am incredibly grateful for your existence.
I access your information nearly on a daily basis for several different projects including #ColeopteraDeColombia.
The #Biodiversity world would not be the same without you!
Cheers!
#BHLat20 #ILoveBHL

An historic illustration of two butterflies and a hairy caterpillar. There are green leaves and white flowers in the background.

The Biodiversity Heritage Library is turning 20! 🎉

We’re starting celebrations with a special anniversary blog series #BHLat20: Treasures from BHL, featuring remarkable works chosen by the people who know them best: blog.biodiversitylibrary.org/2026/03/cele... #ILoveBHL