Texas is set to welcome a burst of butterflies this summer when 300 million monarchs take to the skies. It’s a dramatic uptick in numbers from last year but scientists warn that the monarch, whose numbers have been dwindling in recent years, is not out of danger yet.

After several years of declining monarch numbers, the population appears to have swelled by as much as 144% according to Craig Wilson, director of the USDA Future Scientists Program and Texas A&M research associate. “Figures show the highest number of hectares covered since at least 2006,” Wilson told Texas A&M Today. “That’s a really positive sign, especially since their numbers have been down in recent years.”

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