Yellow-billed Cuckoo (Coccyzus americanus) Science Article 5 abstract In western North America, yellow-billed cuckoos (Coccyzus americanus) have undergone catastrophic declines; the eastern subspecies has undergone less rapid declines in most areas since approximately 1980. Direct loss and degradation of low-elevation riparian woodland habitats have been cited as the primary causes for the declines in yellow-billed […]
Tag: all of Coccyzus
Phylogeny of the cuckoo genus Coccyzus(Aves: Cuculidae): a test of monophyly
Dark-billed Cuckoo (Coccyzus melacoryphus) Science Article 1 abstract Coccyzus comprises nine species of New World cuckoos (Aves: Cuculidae)that breed from southern Canada to central South America. The phylogeny of thisgenus was reconstructed using 2490 base pairs of the mitochondrial genes cytochromeoxidase II and III, and cytochrome b. Maximum likelihood, maximum parsimony,and Bayesian inference approaches produced […]
Distribution and Status of the Yellow-billed Cuckoo(Coccyzus americanus) in Wyoming
Yellow-billed Cuckoo (Coccyzus americanus) Science Article 4 abstract The future federal status of the Yellow-billed Cuckoo (Coccyzus americanus) in NorthAmerica remains unclear. A petition was filed in 1986 to list the western subspecies (C. a.occidentalis) under the Endangered Species Act (ESA). The U.S. Fish and Wildlife Service(USFWS) published a 12-month finding in 1998 stating that […]
EXTERNAL DIFFERENCES BETWEEN NEWLY HATCHED CUCKOOS (COCCYZUS AMERICANUS AND C. ERYTHROPTHALMUS)
Yellow-billed Cuckoo (Coccyzus americanus) Science Article 1 abstract This paper describes characters by which nestling Yellow-billed and Black-billed Cuckoos can be distinguished. It is based on a small collection that I made at Bloomington, Indiana, before I discovered Herrick’s paper. The nests from which I took the birds presented no anomalies. VAL NOLAN, JR., Condor(77)3:341 […]
Phylogeny of the cuckoo genus Coccyzus(Aves: Cuculidae): a test of monophyly
Yellow-billed Cuckoo (Coccyzus americanus) Science Article 3 abstract Coccyzus comprises nine species of New World cuckoos (Aves: Cuculidae)that breed from southern Canada to central South America. The phylogeny of thisgenus was reconstructed using 2490 base pairs of the mitochondrial genes cytochromeoxidase II and III, and cytochrome b. Maximum likelihood, maximum parsimony,and Bayesian inference approaches produced […]
Yellow-billed Cuckoo’s egg in Mourning Dove’s nest
Yellow-billed Cuckoo (Coccyzus americanus) Science Article 2 abstract On June 10, 1952, I found one egg of the Yellow-billed Cuckoo (Coccyzus americanus) in the nest of a Mourning Dove (Zenaidura rnacrou~a) . The location of this nest was on the Cranbrook Estate in Bloomfield Township, Bloomfield Hills, Michigan. WALTER P. NICKELL, Wilson bull. Vol. 66, […]
Phylogeny of the cuckoo genus Coccyzus(Aves: Cuculidae): a test of monophyly
Pearly-breasted Cuckoo (Coccyzus euleri) Science Article 1 abstract Coccyzus comprises nine species of New World cuckoos (Aves: Cuculidae)that breed from southern Canada to central South America. The phylogeny of thisgenus was reconstructed using 2490 base pairs of the mitochondrial genes cytochromeoxidase II and III, and cytochrome b. Maximum likelihood, maximum parsimony,and Bayesian inference approaches produced […]
Phylogeny of the cuckoo genus Coccyzus(Aves: Cuculidae): a test of monophyly
Pearly-breasted Cuckoo (Coccyzus euleri) Science Article 1 abstract Coccyzus comprises nine species of New World cuckoos (Aves: Cuculidae)that breed from southern Canada to central South America. The phylogeny of thisgenus was reconstructed using 2490 base pairs of the mitochondrial genes cytochromeoxidase II and III, and cytochrome b. Maximum likelihood, maximum parsimony,and Bayesian inference approaches produced […]
Erect Posture of the Young Black-billed Cuckoo: An Adaptation for Early Mobility in a Nomadic Species
Black-billed Cuckoo (Coccyzus erythropthalmus) Science Article 2 abstract The vertical or perpendicular pose of the young Black-billed Cuckoo (Coccyzuse rythropthalmush) as been suggestedto function in concealing the young, implicitly from predators (e.g. Herrick 1910, Bent 1940). F. H. Kennard (in Bent 1940: 75-76) gives thefollowing description of a young Black-billed Cuckoo in this pose SPENCER […]
EXTERNAL DIFFERENCES BETWEEN NEWLY HATCHED CUCKOOS (COCCYZUS AMERICANUS AND C. ERYTHROPTHALMUS
Black-billed Cuckoo (Coccyzus erythropthalmus) Science Article 3 abstract Yellow-billed Cuckoos (Coccyzus americanus) and Black-billed Cuckoos (C. erythropthalmus), although nonparasitic, do from time to time lay their eggs in the nests of each other and of various passerines VAL NOLAN, JR., Condor(77)3:341 Download article download full text (pdf)