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ScienceNet - Life Sciences - Animal Behaviour/ Zoology
 

Question No.  18826 :
What are the differences between the house crow and the large-billed crow?

There are two major types of crows found in Singapore. They are the House Crow (Corvus splendens) and the Large-Billed Crow (Corvus macrorhynchos).



The House Crow (43 cm long) has black plumage but a gray collar and upper back and breast. It originated from India and Sri Lanka. House crows are well adapted to living off man's waste that man-made objects, such as stiff wires, are often incorporated into the nest. Although no regular counts were made, the general opinion is that the population is now smaller than it was formerly. To what extent this is due to the shooting of it as a pest, or to improvements in environmental cleanliness, is unknown. House crow is primarily a scavenger and so is to be found around the coasts, river mouths and rubbish tips. Its guile at stealing food from man makes it infamous. It will also eat the natural foods of fruiting wayside trees when they are available.

The Large-billed Crow (51 cm long) is larger than the House crow, having a glossy black appearance all over without the gray collar. It relies much less on man for its living than the House Crow, taking mostly natural food or offal. Large-billed crow, also known as the Jungle Crow, tends to be rather solitary, most often seen in singles or pairs. It may occasionally be seen in the town but is more often encountered in the rural areas and coastal park. It does little to cause humans any inconvenience.

Question Asked By:

Name: David
Age Group: 13 to 20
Occupation Type: Student
Education Level: N/O Level's

 
 

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