1.   Actual long coats, although difficult to spot at this age, will show in fluffy long hairs on the ears in particular.

2.   Badgers usually only venture out after dark, so they can be difficult to spot.

3.   Being almost the colour of the rocks, the Harpies are difficult to spot before they move.

4.   Black seeds are the most pungent, the most rare, and the most difficult to harvest.

5.   Blood stains are very difficult to shift.

6.   Both types of facility are likely to be more difficult to site than a citywide facility designed to serve the electroplating industry.

7.   But their strength as vehicles for practice or as a first amp for a budding shredder would be difficult to challenge.

8.   Communication involves a variety of behaviours which are difficult to categorise.

9.   Cross-cultural differences are difficult to research even though anyone who works in different cultures will assure you they exist.