Irulan wrote:
Is there a similar superstition in the USA as well? That one needs to take a careful look at what the bird is doing when they see it for the first time at the beginning of the year?
The only stork lore I've heard of in the USA is the one about storks bringing babies.
I am unable to find reference to any other myths or superstitions of american origin. Mostly it's just "storks bring babies" or "storks transport souls of the departed to the afterlife, as well as back from the afterlife, into new babies, as part of reincarnation cycle".
The "storks bring new souls to newborns" concept sounds like the precursory myth behind "storks bring babies".
Storks guiding the dead and bringing new life could also be the source of "storks are lucky to have around" type beliefs. The departed are more likely to find peace, and new life is more likely to survive, cos souls are chaperoned both ways - good favor with the spirits in general, etc...
That's my guess, at least.