Typically, a lab procedure designed to investigate the relationship between food types and beak types would involve the following elements:

1. Simulated bird beaks: The procedure should include different tools or materials that represent various beak shapes and sizes, such as forceps, tweezers, pliers, or even 3D-printed beak models.
2. Different food types: The procedure should provide a variety of food items that mimic the types of food birds encounter in their natural environments. These could include seeds, nuts, insects (simulated or real), fruits, and other items that require different techniques for acquiring and manipulating them.
3. Data collection: The procedure should outline a method for recording data on how effectively each beak type can acquire and manipulate each food type. This could involve measuring the time taken, the success rate, or the quantity of food obtained.
4. Data analysis: Once data is collected, the procedure should guide you through analyzing the data to identify patterns or trends in the effectiveness of different beak types for different food types.

If the lab procedure you studied includes these elements, it should provide you with the necessary information and observations to address the lesson question by allowing you to investigate how the availability of certain food types might lead to the prevalence or rarity of specific beak types in bird populations.