My Hummer Pano

by Nick Boren

Title

My Hummer Pano

Artist

Nick Boren

Medium

Photograph - Nikon Photography

Description

In my part of the world, the hummingbirds that stay all year round are the Anna's species. Most hummers will migrate to warmer climates but some stay. I love to feed and photograph the ones that decide to stay!

From Wikipedia:
Hummingbirds exhibit sexual size dimorphism according to Rensch's rule,[27] in which males are smaller than females in small-bodied species, and males are larger than females in large-bodied species.[28] The extent of this sexual size difference varies among clades of hummingbirds.[28][29] For example, the Mellisugini clade (bees) exhibits a large size dimorphism, with females being larger than males.[29] Conversely, the Lesbiini clade (coquettes) displays very little size dimorphism; males and females are similar in size.[29] Sexual dimorphisms in bill size and shape are also present between male and female hummingbirds,[29] where in many clades, females have longer, more curved bills favored for accessing nectar from tall flowers.[30] For males and females of the same size, females tend to have larger bills.[29]

Sexual size and bill differences likely evolved due to constraints imposed by courtship, because mating displays of male hummingbirds require complex aerial maneuvers.[27] Males tend to be smaller than females, allowing conservation of energy to forage competitively and participate more frequently in courtship.[27] Thus, sexual selection favors smaller male hummingbirds.[27]

Uploaded

March 4th, 2023

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