Date: 10/25/2015

Number: 4500

Peak migration is here, you can see them flying all over Ciudad Victoria. Some of them look tired and it breaks my heart, but that's the way it is.

Monarchs arrived to Ciudad Victoria today at approximately 2:30pm (23.733787,-99.175730). The weather was sunny and pleasant, with wind from the north. We could count 20-30 monarchs per minute from 2:30 pm to 5:30 pm when they started to roost on Pecan trees, Mesquite (Prosopis juliflora) and Huizache trees (Acacia farnesiana). I counted 7 small roosts in a 50 meters line with native vegetation and food sources at 6:00pm.

This morning they were seen flying over Hidalgo, Tamaulipas (about 40 miles to the northwest, at 24.244988, -99.566689). They seem to travel along the Sierra Madre, where they are protected from wind gusts. The Patricia Storm only caused rain on Friday and Saturday, with some moderate wind gusts. Nothing dangerous at all.

Editor's Note: Based on the migration rate in Ciudad Victoria of 20-30/minute (1,200-1,800/hour) over 3 hours equals 3,600-5,400 monarchs which averages to 4,500 monarchs.

Ciudad Victoria, TAM

Latitude: 23.7 Longitude: -99.2

Observed by: Ivan
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