Photo by Pamela Cohen
Photo by Pamela Cohen
House finch . Roseate spoonfill .
Bird coloration is also helpful in determining a bird ’ s status within a population . There is a lot of competition out there for somewhat limited resources . Some battles are settled through direct physical confrontations , but others use a little more diplomacy by featuring displays of coloration . Red-winged blackbirds can conceal or display their red wing patch . During territorial disputes , males will reveal their “ red badge of courage ” to each other , eliciting an aggressive response . The male with the larger or brighter red patch might be perceived as dominant , reducing the risk of getting into a physical fight .
Frequently there are plumage differences between birds of different ages as well . Sexually immature birds are often less colorful or less brightly patterned than sexually mature birds . This is a way for younger birds to signal that they are not a threat and reduces aggression from sexually mature birds . An extreme example of this occurs with our painted buntings when young males retain a female-like plumage for the first year of their lives . This process is called delayed plumage maturation and serves several functions . Because adult male painted buntings are incredibly colorful , they may also be at a higher risk of predation . By staying green , young males may increase their chances of survival . They may also reduce their risk of competition with other adult males during their first breeding season . By looking like a female , young males can assume less risk and invest less into reproduction . Young males do breed with females ; however , studies have shown that they are less successful than more experienced and colorful elders .
The brilliant and diverse colors of birds are one reason why millions of people across the world enjoy watching them . Whether you watch birds only in your backyard or you travel across the country for the sole purpose of birding , the one thing on which everyone can agree is that the beauty of birds is what unites our interest and piques our curiosity . The colors and patterns that we perceive when watching a black-andwhite warbler creep up a tree trunk encourages our personal experience with nature . As humans , we naturally want to share those experiences with others , potentially inspiring new people to behold the beauty of nature . It can be a spark that might lead to environmental awareness . Unbeknownst to the birds , their colors could be one of the factors that may help save them . NK
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