It seems it was only one bird, /something bigger/ duck or hawk ..
The engine was seriously damaged, the pics can be found
[ www. P L A N E S .cz ] - B737-436 - OK-WGX - Czech Airlines ?SA ( CSA / OK ) - Praha - Ruzyn? ( PRG / LKPR ),
scroll and see the damage of inlet plus broken fan blades,
as I heard pieces of them went through and damaged additional stages of engine.
Not sure, but the flight was not diverted, as CSA claims, or some Czech media present, the whole charter flight was planned from OSR /via PRG / to Hurghada, they probably chosen not to go straight back to OSR for two reasons - fuel burn before landing, or servicing facilites on Ruzyne Airport Prague...and less troubles with passengers, which had to get to Prague anyway, who knows..