MATLAB: Remove character within a string

Question

code error for removing loc(character) from birds(string). loc ensure has three letters.

function [nm, couriers] = ostrichExpress(birds, loc)
ind=strfind(birds,loc);
nm=length(ind);
birds(ind:ind+2)=[];  %error
couriers=birds;
end

Answer 1

s1 = 'DJI GHA MOZ DJI NER NER NER GHA ' ;
s2 =  'NER' ; 
s1 = strsplit(s1) ; 
idx = ismember(s1,s2) ; % get the strings present 
s1(idx) = [] ;   % remove the strings 
s1 = strjoin(s1)