Unnamed Romulan Birds-of-Prey

The following is a list of unnamed Romulan starships classified as Birds-of-Prey in the 22nd and 23rd centuries.

Encounter with Enterprise (NX-01)
In 2152, two unnamed Romulan Birds-of-Prey chased the Earth Starfleet starship Enterprise from their territory after the Earth ship mistakenly entered one of their minefields. 

Praetor's flagship
In 2266, the Praetor's flagship was involved in the Neutral Zone Incursion with the Federation. The ship attacked several border outposts, destroying them utterly. The USS Enterprise (NCC-1701) responded to the alert and engaged in a tense game of cat-and-mouse with the intruder for more than ten hours, before the Bird-of-Prey was destroyed. 

Border patrol
In 2267, ten unnamed Romulan Birds-of-Prey engaged the USS Enterprise (NCC-1701) after it entered the Romulan Neutral Zone. 

Capture of the Enterprise
In 2268, an unnamed Bird-of-Prey and two unnamed Romulan battle cruisers participated in the capture of the USS Enterprise after it crossed Romulan Neutral Zone.

They would eventually be outmaneuvered by the Enterprise after it engaged a cloaking device stolen from the Romulan flagship. 

Schiffe des Typs Romulanischer Bird-of-Prey