Let's talk about Charles Darwin's sexy theory of selection
Do male birds have a penis? - Quora
The horrible thing you never knew about ducks
Sexual selection in birds - Wikipedia
Why Are Male Animals More Beautiful and Colorful? Sexual Selection! With Photos – BioGeoPlanet
Why do the most flamboyant males have the evolutionary edge? | Aeon Essays
Are all male birds prettier than their female counterparts? If so, why? - Quora
Do Birds Have Penises? | Bird Reproduction | Bird Spot
Opinion | Are These Birds Too Sexy to Survive? - The New York Times
Sexual selection - Wikipedia
Female song is widespread and ancestral in songbirds | Nature Communications
Strange Birds Present Gender-Bending Mystery | Live Science
Do male birds have a penis? - Quora
How the male lyrebird tricks females into having more sex
Robots, Telemetry, and the Sex Lives of Wild Birds: Using Technology to Understand and Protect an Enigmatic Bird - Cornell Video
Birds-of-Paradise: Beauty Kings
Pimp my plumage: Male and female birds are evolving to look alike says study that challenges theory of sexual selection | Daily Mail Online
In the World of Parrots, Nerdy Guys Get the Girls | NOVA | PBS
Pimp my plumage: Male and female birds are evolving to look alike says study that challenges theory of sexual selection | Daily Mail Online
50 Photos of Birds That Brought Joy to Our Readers This Year | Audubon
The theory of 'botanical sexism,' or planting 'male' instead of 'female' trees, debunked - The Boston Globe
Five lessons in seduction from the males of the animal kingdom
