Cows and sheep celebrating the Muslim `Id

Today, I look at the edition of the New York Times at my door and I see a picture of cows and sheep from Kabul, Afghanistan and a reference by the paper to Muslim celebration of Adha religious holiday.  I did not get it: was the Times implying that cows and sheep are Muslims and thus were celebrating the holiday, or was the New York Times extending unusually culturally sensitive salutations to the Afghan cows and sheep on the occasion of Adha?