Robin Migration Update: April 9, 2013 |
|
||||||||||||
Migration is in various phases as a late spring works into April. Four states have reported nesting! How do robins decide where to build? Analyze data to predict when robins will reach the end of the trail.
This Week's Update Includes:
|
Image of the Week | ||||||||||||
|
|||||||||||||
News: Robin Chorus Spreads | |||||||||||||
What's Happening Now Reports of first songs are steadily coming in. Another 25 were added to the map this week, with 11 from Canada and Alaska. First sightings of robins in higher elevations are being reported—even when they still meet up with snow! Meanwhile, robins on territory are starting to nest.
What to Watch For
When will robins reach the end of the trail?
|
Which other Northern Observation Posts are still waiting? |
||||||||||||
Article: Build a Robin's Nest | |||||||||||||
Some robins will build 20 or even 30 nests over their lifetimes. Instinct tells them how to build the perfect structure to hold the eggs they're about to lay. The perfect robin nest must serve as a snug baby cradle to keep the eggs and babies warm, dry, and safe. It must also have room for the mother robin to incubate her young. How do they build such a terrific cradle? Give it a try with human-made blueprints! |
|
||||||||||||
The Migration: Maps | |||||||||||||
These maps show where people reported earthworms, robins and robin nesting behaviors. Patterns emerge as citizen scientists report their observations. What do you notice this week as you compare where robins first sang with where robins are doing nesting behaviors?
|
|||||||||||||
Report Your Sightings! What, Where & How | |||||||||||||
The
First Robin You See |
The
First Robin You Hear Singing |
Your
first sighting of Earthworms |
Robins doing Nesting Behaviors |
||||||||||
Next update April 16, 2013 | |||||||||||||