error message when piping to `head`

[perlpunk]

I'm getting this error message when piping the output to head:

git hub repos ingydotnet | head -5
Repos for 'ingydotnet':
1) (2015-06-30)  ingydotnet/git-hub             Do GitHub operations from the `git` command
2) (2015-06-30)  ingydotnet/pairup              
3) (2015-06-28)  ingydotnet/inline-c-pm         
4) (2015-06-27)  ingydotnet/tickit-info         Stuff needed in Tickit
error: git-hub died of signal 13