NRG_energy:
The sock used to hold the Hummingbirds
NRG_energy:
Banding the Hummingbird
NRG_energy:
Measuring the wing length
NRG_energy:
Female Lucifer Hummingbird
NRG_energy:
Measuring the bill length
NRG_energy:
Seeing if the bird is carrying an egg
NRG_energy:
Female Lucifer Hummingbird