Different birds use different building designs: they can be huge or tiny, made of twigs, grass, leaves, or mud. But most birds follow a similar final
step in the nest-building process. They line the inside of the nest with
something soft, such as a feather.
Once eggs are laid in a nest, the parent birds will spend hour after hour
sitting on them to keep them warm and safe. They need that nice soft
lining for their own comfort.
This is probably the origin of the phrase "feather one's nest.” It means to
do something now that will provide for your own comfort later on.
Make a list of some things you can do now to “feather your nest."

a dictionary is the correct answer

its repetition emphasizing that the chain is his own. sorry if i am wrong.

the passage can be best described as: "the british legislature extended an unwarranted jurisdiction".

we can say that because the text clearly states how the people of the colonies warned the british about their excessive desire to rule over them, without taking into consideration the difficulties their brothers had experienced in america: they struggled to establish the colonies, to adapt to new types of weather, fight with the natives, etc., and how they now see (or then saw) the only way out was to cut all ties with the british, since they ignored the people's petitions.