Extreme weather is shifting the migratory patterns of birds, increasing the chances of deadly avian flu outbreaks on farms.

While government reports released last week confirmed the surge, shoppers have already been feeling the pinch—eggs are becoming increasingly expensive and, at times, difficult to find.

U.S. senators pulled an all-nighter Thursday into Friday, debating dozens of amendments to the chamber’s budget resolution that ranged from access to Medicare and Medicaid to whether Congress should ...