[8] Out of juniors, Shea joined the Suzanne Birt rink for the 2013–14 season with Shelly Bradley and Susan McInnis at third and lead.

The next season they were able to win the 2015 Prince Edward Island Scotties Tournament of Hearts by defeating Kathy O'Rourke in the semifinal.

They won the Royal LePage OVCA Women's Fall Classic[11] and finished runner-up at the Lady Monctonian Invitational Spiel.

[12] The team was successful at the provincial championship, defeating Veronica Smith in the semifinal of the 2017 Prince Edward Island Scotties Tournament of Hearts.

The team won five straight sudden-death elimination games at the 2019 Prince Edward Island Scotties Tournament of Hearts to claim the provincial title.

Team Birt played in nine tour events the following season and qualified in eight of them, only missing the playoffs at the 2019 AMJ Campbell Shorty Jenkins Classic.

This year, they won the Tim Hortons Spitfire Arms Cash Spiel and were finalists at the Atlantic Superstore Monctonian Challenge and the Jim Sullivan Curling Classic.

[22][23] Due to the COVID-19 pandemic in Canada, the qualification process for the 2021 Canadian Olympic Curling Trials had to be modified to qualify enough teams for the championship.

[24] Team Birt qualified for the Trials Direct-Entry Event due to their CTRS ranking from the 2019–20 season.

[26] The team had two more tour stops during the season, which included winning the Stu Sells 1824 Halifax Classic and reaching the semifinal of the Tim Hortons Spitfire Arms Cash Spiel.

[27] The 2022 Prince Edward Island Scotties Tournament of Hearts was cancelled due to the pandemic and Team Birt were selected to represent their province at the national women's championship.

In October, they won the Superstore Monctonian Challenge with spares Colleen Jones and Sinead Dolan filling in for Shea and Marie Christianson.

In the new year, they easily won the 2023 Prince Edward Island Scotties Tournament of Hearts, winning all three qualifying events.