Article by Author
Flight of Shimmering Light: Exploring Insights into Hummingbird Biology from Comparative Morphology
Mark F. Riegner
Jahrbuch für Goetheanismus 2024, 2024
The 377 species of hummingbirds (Family Trochilidae) occur across the Americas and are considered the most colorful group of birds in the world. This status is achieved due to the majority of… Read More

Parrots and People
Mark F. Riegner
Jahrbuch für Goetheanismus 2023, 2023
The approximately 398 species of living parrots (macaws, parakeets, cockatoos, etc.) comprise a more or less homogeneous group of birds found mostly in tropical and subtropical regions. No other… Read More
