This Week's Update Includes:

• News: Fresh Wings!
• Explore: Nectar and Migration
• The Migration: Maps and Journal
  

"The eggs found mid-last month have resulted in some fresh wings in the past few days. It's great to see their bright colors." Chuck Patterson, Driftwood, Texas (April 14)

Cold Holding Them Back
The leading edge of the migration has not advanced beyond its position last week. A mid-continent cold air mass continues to hold the monarchs back. The northernmost sighting remains at latitude 37N. South of that line, monarchs seem to be stacking up. Many people in Texas reported multiple monarchs last week. Let's see what happens when the Great Plains warm up!

Surprise Sightings in the East
Meanwhile, amid warmer temperatures in the mid-Atlantic region came two unexpected sightings. First monarchs were reported from North Carolina and Virginia this week. Where do you think the monarchs came from?

• See Surprise Sightings in the East

Spring Green-up
Check out the milkweed map. Spring green-up has advanced to latitude 40N along Atlantic coast. In contrast, mid-continent milkweed has only emerged to latitude 37N; it's about 180 miles behind that in the east.

• Article: Nectar and Migration