Common Birds as Environmental Indicators and Societal Mirrors

Key Quotes

"so this year we're turning our binoculars towards a few wrongfully overlooked birds joining me now are two of our favorite birders to share some surprising facts about birds that don't often make it to the top of the pecking order we have karina newsom conservation scientist at the national wildlife federation she's based in atlanta georgia and author and illustrator rosemary mosco both of you welcome back to science friday thank you so much for having us"

This quote introduces the episode's focus on underappreciated common birds and the guests who will share insights. The author highlights that the show aims to provide surprising facts about these often-overlooked species.

"so the reason it was brought over here was as a biocontrol believe it or not so it was brought over here because in the 1800s there was a horrendous problem with caterpillars especially this one um brown caterpillar called the elm spanworm that would hang from trees and land on people and eat leaves and there are descriptions of men complaining because these caterpillars are dangling from their mustaches"

Rosemary Mosco explains the intentional introduction of the house sparrow to North America. Mosco details that this was a biocontrol measure to combat a severe caterpillar infestation that was causing significant public nuisance.

"i think that you don't have to love house sparrows i mean they cause problems they especially spread certain diseases um to other birds um they can spread west nile for example and we do know that they will compete with birds like bluebirds for for nesting boxes although there's some question about the overall population effects that they have on a on a grander scale"

Karina Newsom discusses the complexities of the house sparrow's impact. Newsom acknowledges that house sparrows can cause problems, including disease transmission and competition with native birds for nesting sites, but notes that their overall population effects are still being studied.

"they're in the corvid family so they're related to crows and ravens um they're the ones that we see probably most often in the backyard especially feeders they're great mimics there have been multiple times where there has been a blue jay around that i thought was a red shouldered hawk they're for some reason really into mimicking red shouldered hawk calls"

Karina Newsom highlights the intelligence and mimicry abilities of blue jays. Newsom explains that blue jays, being part of the corvid family, are adept at mimicking other birds, such as red-shouldered hawks, which can be used to their advantage.

"so i i always whenever i think about titmice and especially titmice but titmice and chickadees they are among birds that you'll see like in forest and city ecosystems or in backyards they want the smoke if there is a even potential threat nearby they're going to be the first to say something and they are so quick to respond to the presence of like a predator or you know a threat of some kind that other bird species other taxonomic groups entirely like squirrels will respond and will come rushing to the scene to see what's going on"

Karina Newsom describes the alarm call behavior of titmice and chickadees. Newsom points out that these birds are highly responsive to potential threats, and their vocalizations alert not only other birds but also other wildlife like squirrels to danger.

"so whenever people knock pigeons i like to say okay so there was a medal that britain put out for animals that were brave during world war ii and a whopping 32 pigeons won this medal it was called the dickin medal um and they would have carried important information from troops that you know for example were behind enemy lines or were being hit by friendly fire or whose you know plane went down so 32 pigeons just in world war ii were heroic"

Rosemary Mosco defends the historical significance of pigeons. Mosco shares that 32 pigeons were awarded the Dickin Medal for bravery during World War II, highlighting their crucial role in carrying vital messages for troops in dangerous situations.