Query using 'LIKE' returns empty set

Next problem is one I've not before encountered.

The .sql file used to import data to the fish_counts table has rows such as
this one:

('1237796458250','0','17174','Buchanan Creek','Buchanan Creek trib to North
Fork Nehalem River','0-3.25','161980','Unknown','Jack or subadult','Peak
live & dead fish','Spawner Counts','ODFW','2012-01-06','1950-1974',25,
'1950-10-01','1951-01-31','Ground','Actual Physical Counts',0), 
[Lines wrapped in the message only.]

When I submit this query I get no rows returned:

select * from fish_counts where stream_tribs ilike 'Nehalem';
  count_id | loc_id | downstream | upstream | stream_name | stream_tribs | r
iver_miles | itis_tsn | production | life_stage | count_type | data_categor
y | compiled_by | updated | years | nbr_observations | begin_date | end_dat
e | sample_method | calc_method | count_value 
----------+--------+------------+----------+-------------+--------------+--
-----------+----------+------------+------------+------------+-------------
--+-------------+---------+-------+------------------+------------+--------
--+---------------+-------------+-------------
(0 rows)

What is equally puzzling is when I search the input file using
     grep -c -e "Nehalem" fish_counts
0 is returned, the same as the postgres query.

I want to understand what I've done incorrectly.

TIA,

Rich