Do you just want to deal with the Crow's Nest Dragonet first? Or have you started that in another thread?
When threatened, crow's-nest dragons usually fly away. If prusued by a flying predator, however, they migh tuse their ability to breathe out a fog cloud as a 9th-level caster. Although the cloud usually blows away quickly in ocean winds, it can give the dragonets time to escape. Each dragonet can use this magical breath only once per day.
Go ahead and swap the cobra dragon's alignment. That must have been a copy-paste-forget-to-change error. Just keep track of it for darjr, I guess.
Here's the crow's nest dragonet breath weapon entry from the original critter:
So...
Breath Weapon (Su): Once per day, a crow's nest dragonet can breathe out a cloud of mist, as the spell fog cloud.
Sure, ready for the next thing?
I managed to log in just now, so I added the breath weapon.
OK, that's set. What's next for this thread? Let it wait for a bit before starting more true dragons?
Dragon Update Issues
Jade Dragons from the D&D Master Set (1985) have a breath weapon caused a horrible rotting disease as well as damage. Our Enworld conversion just does the damage. Should we update it?
Ruby Dragons from the D&D Master Set (1985) have a breath weapon that melts inanimate objects as well as doing fire damage. Our Enworld conversion just has fire damage plus a 'burn' effect like a Fire Elemental. Should we update it?
Faerûnian Yellow Dragons from the Draconomicon (1990) have a breath weapon that can blind as well as causing damage. Our Enworld conversion just does damage. Also, this dragon has the "signature trick" of creating a sinkhole pit trap like an ant lion, which we mention in the Combat description but don't give any rules for. Should we update it?