![It’s a paradox that bank swallows, birds that epitomize aerial agility, actually nest in a hole in the ground. These members of the Hirundinidae family thumb their beaks at another tradition: They mostly nest in early summer, not spring. It makes sense for these insectivorous birds to nest at the peak of insect activity. More […]](https://www.coloradodaily.com/wp-content/uploads/2019/07/0702JulyNatureAlmanac1-1.jpg?w=117 "It’s a paradox that bank swallows, birds that epitomize aerial agility, actually nest in a hole in the ground. These members of the Hirundinidae family thumb their beaks at another tradition: They mostly nest in early summer, not spring. It makes sense for these insectivorous birds to nest at the peak of insect activity. More […]")
July Nature Almanac: Bank swallows pose an ingenious paradox
It’s a paradox that bank swallows, birds that epitomize aerial agility, actually nest in a hole in the ground. These members of the Hirundinidae family thumb their beaks at another...
All Stories
May Nature Almanac: Western tanagers bring tropical colors to conifer forests
If you mixed together the colors of a cardinal, a canary, and a crow, you might come up with a western tanager, a songbird that graces the cover of many...