CLASS WEBPAGE
Datafile Name: Cuckoo Egg Lengths
 
Description: That cuckoo eggs were peculiar to the locality where found was already known in 1892. A study by E.B. Chance in 1940 called The Truth About the Cuckoo demonstrated that cuckoos return year after year to the same territory and lay their eggs in the nests of a particular host species. Further, cuckoos appear to mate only within their territory. Therefore, geographical sub-species are developed, each with a dominant foster-parent species, and natural selection has ensured the survival of cuckoos most fitted to lay eggs that would be adopted by a particular foster-parent species.
    This data set is on the lengths of cuckoo eggs found in the nests of other birds (drawn from the work of O.M. Latter in 1902). Cuckoos are knows to lay their eggs in the nests of other (host) birds. The eggs are then adopted and hatched by the host birds. The survival time of cuckoo eggs in the nest of other host birds is of interest.
Number of cases: 115
Variable Names:
  1. 1. MDW PIPIT: Meadow Pipit
  2. 2. TREE PIPIT: Tree Pipit
  3. 3. HDGE SPRW: Hedge Sparrow
  4. 4. ROBIN: Robin
  5. 5. PIED WTAIL: Pied Wagtail
  6. 6. WREN: Wren
All data are lengths in millimeters
The Data: 
MDW      TREE   HDGE           PIED   
PIPIT    PIPIT  SPRW   ROBIN    WTAIL    WREN 

19.65	21.05	20.85	21.05	21.05	19.85
20.05	21.85	21.65	21.85	21.85	20.05
20.65	22.05	22.05	22.05	21.85	20.25
20.85	22.45	22.85	22.05	21.85	20.85
21.65	22.65	23.05	22.05	22.05	20.85
21.65	23.25	23.05	22.25	22.45	20.85
21.65	23.25	23.05	22.45	22.65	21.05
21.85	23.25	23.05	22.45	23.05	21.05
21.85	23.45	23.45	22.65	23.05	21.05
21.85	23.45	23.85	23.05	23.25	21.25
22.05	23.65	23.85	23.05	23.45	21.45
22.05	23.85	23.85	23.05	24.05	22.05
22.05	24.05	24.05	23.05	24.05	22.05
22.05	24.05	25.05	23.05	24.05	22.05
22.05	24.05	*	23.25	24.85	22.25
22.05	*	*	23.85	*	*
22.05	*	*	*	*	*
22.05	*	*	*	*	*
22.05	*	*	*	*	*
22.05	*	*	*	*	*
22.25	*	*	*	*	*
22.25	*	*	*	*	*
22.25	*	*	*	*	*
22.25	*	*	*	*	*
22.25	*	*	*	*	*
22.25	*	*	*	*	*
22.25	*	*	*	*	*
22.25	*	*	*	*	*
22.45	*	*	*	*	*
22.45	*	*	*	*	*
22.45	*	*	*	*	*
22.65	*	*	*	*	*
22.65	*	*	*	*	*
22.85	*	*	*	*	*
22.85	*	*	*	*	*
22.85	*	*	*	*	*
22.85	*	*	*	*	*
23.05	*	*	*	*	*
23.25	*	*	*	*	*
23.25	*	*	*	*	*
23.45	*	*	*	*	*
23.65	*	*	*	*	*
23.85	*	*	*	*	*
24.25	*	*	*	*	*
24.45	*	*	*	*	*