Busselton remains outside the top five following its 73-point loss to Bunbury at PC Payne Park on Sunday afternoon.
The Magpies were left stunned, after the Bulldogs claimed four unanswered goals in the opening quarter.
Bunbury gained even more momentum, before kicking two goals to one in the second term.
Trailing by 35 points at the main break, Busselton failed to close the gap in the remaining two quarters.
Helped by five goals from Cameron Hay and three from Jesse Gribble, the Bulldogs scored a 14.7.91 to 2.6.18 victory and their second win of the season.
Magpies Joshua Lee and Cameron Embry notched up one goal each.
With one win and four losses, the Magpies sit above Collie and Harvey on the ladder after five gruelling weeks.
Busselton will strive for its second win of the season against South Bunbury, at Bovell Park, this Sunday.
Last week, the Harvey Bulls Football Club's players, coaches, and fans came together to honour one of their own.
Remembering Lachlan "Lockie" Hernaman for his compassion and selflessness, hundreds attended the league player's funeral service on Tuesday, May 14.
On Saturday afternoon, the club returned to the field for the first time since Hernaman's sudden death.
The Bulls and Collie Eagles played out a scrappy contest at the Harvey Recreation Ground.
In front by 11 points at quarter time, Collie leapt off the blocks before setting up more opportunities on goal in the second term.
After Harvey and star Michael Robinson's first goal, the Bulls trailed by 20 points at half time.
Behind 5.12.42 to 2.7.19 at three-quarter time, Harvey needed to move fast and kick accurately in the fourth.
Despite their best efforts, the Bulls were unable to stop Collie from claiming a 6.17.53 to 5.12.42 win.
Harvey-Brunswick-Leschenault picked up another four points, and moved to the top of the ladder, with a 10-point win over the Eaton Boomers.
Trailing throughout the contest, the Lions booted three unanswered goals in the fourth quarter to secure an 11.9.75 to 9.11.65 result.
Losing 0.0.5 to 11.11.77 to Donnybrook at Hands Oval, South Bunbury put up the lowest score in league history.
Dons Sean Lynch and Samual Lowrie dominated up forward and kicked four goals each.
An epic first-quarter performance led Augusta-Margaret River to a 10.17.77 to 6.7.43 victory over Carey Park at home.
Harry Taylor, once again, starred for the Hawks with three sublime goals.
Teams will return for Round Six this weekend.