CREATE TABLE table_44721 ("School" TEXT, "Location" TEXT, "Founded" FLOAT, "Affiliation" TEXT, "Enrollment" FLOAT, "Nickname" TEXT, "Primary conference" TEXT)

What is the total enrollment at the school that has the nickname of the Fightin' Blue Hens?
SELECT COUNT("Enrollment") FROM table_44721 WHERE "Nickname" = 'fightin'' blue hens'
SELECT COUNT("Enrollment") FROM "table_44721" WHERE "Nickname" = 'fightin\' blue hens'