Were there any reports of migrating birds in the area around the time of the accident? e.g. about 24,000 barnacle geese migrate from the Solway Firth to Svalbard via Norway at about this time of the year.
Porrohman, good point, these birds apparently fly anywhere from 2100 to 6600 feet, so a multiple bird strike is one possibility with an estimated 2000 feet inbound altitude.
We'll know more once the FDR/VDR is interrogated and the investigation team have a chance to make a preliminary examination of the recovered wreckage.
Here's to a quick answer so we can all move on...