I am a domicile for a loyal companion, often a secondary structure, seldom requiring a mortgage. What am I?

I'm the Atlantic to the ants, A vast and murky sea, To birds I'm an oasis, They drink and bathe in me To children I'm a fun distraction, In which they stomp and play, But to the sun I'm nothing, As it quickly burns me away

Captain's day Network's record Lead in to arithm How a lumberjack rolls

Shiver me timbers, when the sun dips low, and shadows creep, what be the hour the scallywags know?

I am a kingdom where sunlight is sifted, where giants drink clouds and the ground never dries. My breath is warm, my voice is a chorus, and life hides in layers beneath emerald skies.