YELLOW-BILLED CUCKOO

Yellow-billed Cuckoo
Copyright © 2005 Jerry Kumery

Conservation Concern: 6PIF

Population Trend: Poorly Known
Credibility: Poor

The Yellow-billed Cuckoo is an uncommon to fairly common breeder, more common to the south. Preferred habitat includes dense shrublands and mature mixed and riparian woodlands. Long term trends estimate an annual decrease of about 2% and . short-term trends show an increase of about 4% annually, but inconsistency in the sites monitored makes it difficult to accurately access the trend for this species.

Trend Level

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Avg. Yearly
Rate of Change:

The vertical axis numbers represent an index of the population change.

Note that the scales may vary between graphs.

Avg. Yearly
Rate of Change*:

-2%

Technical Notes (1997-2004 Trend)

Sample Size (Indiv.): 12

Sample Size (Records): 11

AVG. YEARLY RATE OF CHANGE:
(including standard error)
-66 to 74

GOODNESS OF FIT:
Chi-square: 12.42, df 12, p 0.4126
Likelihood Ratio: 11.96, df 12, p 0.4486
AIC: -12.04
NOTE: (model fits if p values are above 0.05)

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1997-2004 Trend Point Count Data	1988-2004 Trend* All Observation Types