My Baby Chick!

Unexpected symptoms

Outside in the forest, nighttime

Urogi cackled maniacally as he flew higher and higher into the fresh air, after a long time he was split with his other counterparts known as his brothers. Since an unfortunate demon slayer had decapitated the main body, Hantengu, which had this slayer become food.
As the hyperactive tengu demon flew so freely through the sky, suddenly he felt his entire body all hot....

Until he puked out his dinner which caused him to lose control of himself flying, went straight towards the tree branch. Quickly he grabbed and lifted himself to sit while trying to rest from the nausea and another vomiting might trigger again.
'What the hell was that?... Might be poison.' He smirked,  'Ha, in no time I'll-'
He started to feel another vomitation.

Time skip
Sekido, Karaku and Aizetsu were portal around the woods, searching for the Joy demon after he took after with a chuck of dismembered arm without any warning.
While searching for the youngest demon around the area, they heard loud cries from 50 miles away from them.
"His scream of cries, makes me even sadder.." Aizetsu said grip his harpoon spar tightly while hearing Urogi cries through his ears while Sekido was snarling, "useless fool!" He charges ahead, meanwhile Karaku cackles due to hearing the painful cries.
"I can't wait to see this!" He smirks but both him and Aizetsu follow behind Sekido.

While Urogi was screaming louder than thunder from the pain he was experiencing. First vomiting, unexpect nausea and now this?
He reminds of the tree but higher up closer to the unknown nest while screaming, instinct he was forced to push. His vein pops up from his forehead as he pushes more stamina, he couldn't tell what the hell is this? But absolutely death, itself.
He takes a break while trying to catch his breath, after nearly a few minutes of pushing, he wants to quit.
While his bird instincts were to keep going, he swallowed his saliva then went back on pushing on more. His screams were heard as his demon art; sonic scream blasts into the air which he couldn't hear anything while pushing out ...... (f/c) egg the size of watermelon.
He stopped as he cried worse, while his wings covered the egg closer to him out of his nature.
Urogi was both embarrassed but happy, but more than anything he could express while down below the tree.
His three brothers look up confused on their faces, until it was ruined
"What the hell are you doing up there, Urogi!!"