KGEO777 , here in Scotland , I picked up a Mexican films blu ray box on the Powerhouse label .WORLD OF THE VAMPIRES - 1960 --Mexican film with a suave vampire who has a bunch of vampire women and goons in cheap rubber masks to carry out his plan for world domination. But first he has to kill the last descendant of his archenemy, Colman. He plans to get revenge by turning his daughters into vampires and he does it to one. He then has her bite a family friend who has a theory of destroying vampires by playing certain music on a piano. He starts to turn into a vampire himself (starting with his hand--which looks like a werewolf claw). The vampire also has a pit of stakes in his lair--not so smart it turns out. Kind of goofy but atmospheric.
The vampires when cornered make seagull sounds.
BLOOD AND BLACK LACE -1966 - Had planned to rewatch something else but it came up first so....
" Il VAMPIRO " which contained The Vampire and The Vampire's coffin . Perhaps related to your film ?