Answer:
Buzzards are widely known for their apperance being creepy or scary, When buzzards flock together they can be seen as one giant dark circle comparing Mr.Shiftlets thoughts or head to a group of buzzards could be taken as one dark cloud in his head or multiple eery thoughts being grouped together.
Explanation:
Im not sure if this is the answer you are looking for but this is how I would answer hope it helps!
Answer:
The fire led to legislation requiring improved factory safety standards and helped spur the growth of the International Ladies' Garment Workers' Union (ILGWU), which fought for better working conditions for sweatshop workers. The building has been designated a National Historic Landmark and a New York City landmark.
For a sense of relatability and to make a deeper meaning.