Name _____________________________________________ Date ________________ Class period _______

Bird beak adaptation and competition Lab Data sheet

Type of Birds	Quantitative activity	Feeding Round 1	Feeding Round 2	Feeding Round 3	Feeding Round 4
		Stick Worms	Rock Beetles	Washer Weevils	All food item at once
					Worms	Beetles	Weevils
Chopstick bills Total # of birds in group _______	Total eaten by individual
	Total eaten by group
	Average eaten by group
Clothespin bills Total # of birds in group _______	Total eaten by individual
	Total eaten by group
	Average eaten by group
Scissor bills Total # of birds in group _______	Total eaten by individual
	Total eaten by group
	Average eaten by group
Spoon bills Total # of birds in group _______	Total eaten by individual
	Total eaten by group
	Average eaten by group
Tweezer bills Total # of birds in group _______	Total eaten by individual
	Total eaten by group
	Average eaten by group

1. Construct two graphs, one containing the 3 individual feeding rounds and one for the forth round.

• Graphs will compare beak types and number of food types eaten.

2. For each food type which beak was most successful according to the data? Why is this so?

3. Which bird or birds are least adapted for feeding according to your data? Why is this so?

4. Which bird or birds are best adapted for feeding according to your data? Why is this so?