Hull recorded yet another full five-point haul against one of the league’s strugglers with winger Stephen Hihetah helping himself to another four tries.
It took Hull until the end of the first quarter to open their account and it was not until the final twenty minutes that the flood gates opened and they scored 28 unanswered points.
On a heavy pitch and faced with some determined tackling from the home side, it took a while to get into their stride but they finally went ahead in the 22nd minute with an unconverted try from back row forward Rupert Kay.
Birkenhead replied two minutes later when Stuart Morgan kicked a penalty goal for their only score of the game.
Hull were starting to control the game but it took until the 35th minute before they scored again when number eight Joe Stafford forced his way over for a try converted by off-half Stephen Johnson.
The second half was just two minutes old when centre Tomasi Tanumi went in for a try and this heralded a scoring surge by Hull as their attacking flair left a tiring Birkenhead defence flat-footed.
After 53 minutes Hihetah romped in for an unconverted try and 10 minutes later he repeated the exercise and this time Stephen Johnson made no mistake adding the extra two points.
Nine minutes later Hull’s other winger, the pacy Mike Adlard, went in for a try converted by Johnson.
With Hull dominating possession and territory their backs were running riot and good handling gave Hihetah the opportunity to add two further tries both of which Johnson converted to see Hull home by a 50-3 margin and keep the pressure on the two sides above them in the league.