01-27-2016, 03:25 PM
That is an interesting study. Now I am wondering how the birds know about the lake filling with water.
How do our birds know when to fly north. They always arrive around the right time, but winter doesn't end at the same time every year.
Birds are remarkable. I would love to hear what they find out.
How do our birds know when to fly north. They always arrive around the right time, but winter doesn't end at the same time every year.
Birds are remarkable. I would love to hear what they find out.
![[Image: IMG_9091.JPG]](https://lh5.googleusercontent.com/-rtQnRVnpHuw/Upv4HXYM20I/AAAAAAAAAqo/K5MmSTvkZdA/w296-h229-p-no/IMG_9091.JPG)
Catherine
