You are pretty lucky, when you recieve information about obstacles from the landing site. Most of the time there are police and rescueteams, who not even think about an information for the helicoptercrew
.
By the way, It´s always a miracle, when we loose a "highly skilled veteran". I have to remember, that you won´t find a greenhorn on an HEMS mission.
Normally, you will see the black cables in front of the white background. Except, you´ll do a very steep approach and you fix a reference point in the front of you to avoid a "white out". In this case, the wires are exactly under the helicopter and for all crew members "invisible".
Very sad...