 |
 |
||||
|
Hummingbird
Migration Update: April 13, 2006
Today's Report Includes:
"Data Only" Update This Week
This week we received sightings reporting dates BOTH earlier and later than normal: Grayling, MI reports their first Ruby-throated hummer almost a month earlier than the past 5 years, and in Candler, NC the first sighting is almost 3 wks later than last year! These birds have made long journeys! A hummingbird report from MS, "He looked tired and thin and drank repeatedly from the feeders at 5:05 pm."
Just a quick update today to give you the latest maps and data. Watch for a full update next week.
Too Many Sightings? Choose a Random Sample
If you are feeling overwhelmed by the volume of hummingbird data to map, one option is to reduce the number of data points students plot on their maps. But how to decide which reports to use? This is a great opportunity to introduce the mathematical idea of choosing random samples.
Find out more:
Hummingbird Maps and Data
 |
 Distribution Map |
 |
| Rufous
|
Ruby-throated
Most
data courtesy of Lanny Chambers, |
The Next Hummingbird Migration Update Will Be Posted on April 20, 2006.
Copyright
1997- 2006 Journey North. All Rights Reserved.
Please send all questions, comments, and suggestions to our
feedback form.
