About us: We own the Wild Birds Unlimited nature shop in East Lansing, Michigan,
a store that provides a wide variety of supplies to help you enjoy the birdwatching hobby.

This blog was created to answer frequently asked questions & to share nature stories and photographs.
To contribute, email me at bloubird@gmail.com.

Friday, October 9, 2015

Photo Share: Blue Jays hide 107 acorns per day

Wild Birds Unlimited Whole Peanut Wreath
A single blue jay can cache or hide as many as 5,000 acorns up to 2.5 miles from their original source and retrieve them when needed. They can do this by carrying several nuts at one time in their esophagus, a tube that connects the mouth and the stomach. 

In one research study, 50 Blue Jays were observed selecting and caching 150,000 acorns over a period of 28 days. Each bird cached a total of 3,000 acorns by selecting and hiding an average of 107 acorns per day.

It is thought that the rapid northward dispersal of oaks after the ice age may have been helped by the northern transport of acorns by Jays.

No comments: