As used on my grandfathers 'puffers'.
This is probably a modern copy. Certainly it has never flown on a ship.
can anyone identify the bird, and why it is on the flag?
It can be seen being used as a letterhead in a photograph in the documents folder.
The more information you can give about the people you mention, the more chance there is of someone else connecting with your family.
Dates and places of births, deaths and marriages all help to place families.
Professions also help.
'My great-grandmother mother was a Douglas from Montrose' does not give many clues to follow up! But a bit of flesh on the bones makes further research possible. But if we are told who she married, what his profession was and where the children were baptised, then we can get to work.
Maybe it is time to update the information in your profile?