Costa’s Hummingbird COHU
![Costa's Hummingbird COHU](https://hollandwest.com/wp-content/uploads/1999/07/01-JV8A0047-COHU.jpg)
Costa’s Hummingbird COHU
Costa’s Hummingbird COHU male
Costa’s Hummingbird female
Costa’s Hummingbird male
Costa’s Hummingbird female
Costa’s Hummingbird female
For AHY male, wingtips extend to or beyond tail.
Male after hatch year Costa’s Hummingbird
Hatch year male Costa’s Hummingbird COHU
![Costa's Hummingbird COHU](https://hollandwest.com/wp-content/uploads/1999/07/JV8A2780-COHU.jpg)
Costa’s Hummingbird COHU
Hatch year male Costa’s Hummingbird COHU
![Costa's Hummingbird COHU](https://hollandwest.com/wp-content/uploads/1999/07/JV8A2778-COHU-iri.jpg)
Costa’s Hummingbird COHU
Hatch year male Costa’s Hummingbird COHU
![Costa's Hummingbird COHU](https://hollandwest.com/wp-content/uploads/1999/07/JV8A1469-COHU-tail.jpg)
Costa’s Hummingbird COHU
Hatch year male Costa’s Hummingbird COHU
![Costa's Hummingbird COHU](https://hollandwest.com/wp-content/uploads/1999/07/JV8A1811-COHU-tail.jpg)
Costa’s Hummingbird COHU
Everyone interested in hummingbirds should buy Sheri Williamsom’s
book, Hummingbirds of North America. Here is a HYM tail from that book.
![Costa's Hummingbird male HY](https://hollandwest.com/wp-content/uploads/1999/07/09-Costas-MHY.jpg)
Costa’s Hummingbird male HY
Costa’s Hummingbird COHU AHY male
![Costa's Hummingbird COHU AHY M](https://hollandwest.com/wp-content/uploads/1999/07/COHU-ahym-tail.jpg)
Costa’s Hummingbird COHU AHY M
Hatch year male Costa’s Hummingbird COHU
![Costa's Hummingbird COHU](https://hollandwest.com/wp-content/uploads/1999/07/JV8A1766-COHU-wing.jpg)
Costa’s Hummingbird COHU
Costa’s Hummingbird COHU wing
![wing comparison](https://hollandwest.com/wp-content/uploads/1999/07/BCHU-COHU.jpg)
wing comparison
Costa’s Hummingbird COHU Auricular Study
![Costa's Hummingbird COHU](https://hollandwest.com/wp-content/uploads/1999/07/Costas-Hummingbird.jpg)
Costa’s Hummingbird COHU
Costa’s Hummingbird COHU
![Costa's Hummingbird COHU auriculars](https://hollandwest.com/wp-content/uploads/1999/07/COHU-aur.jpg)
Costa’s Hummingbird COHU auriculars
Costa’s Hummingbird COHU
![Costa's Hummingbird COHU barb spacing](https://hollandwest.com/wp-content/uploads/1999/07/2024021901755-SPACING.jpg)
Costa’s Hummingbird COHU barb spacing
Costa’s Hummingbird COHU
![Costa's Hummingbird COHU plucked](https://hollandwest.com/wp-content/uploads/1999/07/2024022001759-COHU-plucked.jpg)
Costa’s Hummingbird COHU plucked
Costa’s Hummingbird COHU open auricular (#1)
![Costa's Hummingbird COHU proximal view #1](https://hollandwest.com/wp-content/uploads/1999/07/1-proximal.jpg)
Costa’s Hummingbird COHU proximal view #1
Costa’s Hummingbird COHU open auricular (#1)
![Costa's Hummingbird COHU medial view #1](https://hollandwest.com/wp-content/uploads/1999/07/1-medial.jpg)
Costa’s Hummingbird COHU medial view #1
Costa’s Hummingbird COHU open auricular (#1)
![Costa's Hummingbird COHU distal view (#1)](https://hollandwest.com/wp-content/uploads/1999/07/1-distal.jpg)
Costa’s Hummingbird COHU distal view (#1)
Costa’s Hummingbird COHU closed auricular (#2)
![Costa's Hummingbird COHU proximal view (#2)](https://hollandwest.com/wp-content/uploads/1999/07/2-proximal.jpg)
Costa’s Hummingbird COHU proximal view (#2)
Costa’s Hummingbird COHU closed auricular (#2)
![Costa's Hummingbird COHU medial view (#2)](https://hollandwest.com/wp-content/uploads/1999/07/2-medial.jpg)
Costa’s Hummingbird COHU medial view (#2)
Costa’s Hummingbird COHU closed auricular (#2)
![Costa's Hummingbird COHU distal view (#2)](https://hollandwest.com/wp-content/uploads/1999/07/2-distal.jpg)
Costa’s Hummingbird COHU distal view (#2)
Costa’s Hummingbird COHU
Costa’s Hummingbird COHU