Bird Count
Arizona is one of the most populous and diverse environments with regard to bird species, acting as a home for hundreds of unique species as well as a regular stop for many migratory species

As participants in the ecosystems of all the places they visit and inhabit, birds are essential elements of space they occupy

Declines in bird populations have been reported across North America –  one study underscored by the Audubon Society saw a 29 percent decrease in total population in the US and Canada since the 1970's

Arizona’s specific environments, including arid and western forest environments, saw a 20 and 30 percent decrease respectively

In an attempt to raise awareness of this issue, data analyses and visualizations were made using data from the Audubon Society's Christmas Bird Count

Of all the birds that reside in or pass through Arizona, the ten whose populations saw the highest average rate of decrease since the 1970's were highlighted through hand-done illustrations in accompaniment with these visualizations
Lark Bunting (μ​​​​​​​ROC(n) = -0.03338)
House Finch (μ​​​​​​​ROC(n) = ​​​​​​​-0.04442)
Mourning Dove (μ​​​​​​​ROC(n) = ​​​​​​​-0.05316)
White-crowned Sparrow (μ​​​​​​​ROC(n) = ​​​​​​​-0.06358)
European Starling (μ​​​​​​​ROC(n) = ​​​​​​​-0.08248)
Yellow-headed Blackbird (μ​​​​​​​ROC(n) = ​​​​​​​-0.10925)
House Sparrow (μ​​​​​​​ROC(n) = ​​​​​​​-0.19678)
Red-winged Blackbird (μ​​​​​​​ROC(n) = ​​​​​​​-0.20100)
Brown-headed Cowbird (μ​​​​​​​ROC(n) = ​​​​​​​-0.24557)
Brewer's Blackbird (μ​​​​​​​ROC(n) = -0.27744)
Bird Count
Published:

Bird Count

Published: