Hawk Bird

I was playing on my multiplayer server on the same computer. This bug did not happen the previous time I played. I don't know how to reproduce this. It seems to happen very rarely.

Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 3/24/13 12:03 PM
Description: Manually triggered debug crash

java.lang.Throwable
at net.minecraft.client.Minecraft.l(SourceFile:1164)
at net.minecraft.client.Minecraft.K(SourceFile:574)
at net.minecraft.client.Minecraft.run(SourceFile:526)
at java.lang.Thread.run(Unknown Source)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Affected level –
Details:
Level name: MpServer
All players: 2 total; [bdw['HawkBird'/525, l='MpServer', x=-168.23, y=65.62, z=174.73], bfl['Juluban'/4764, l='MpServer', x=-146.50, y=92.00, z=195.63]]
Chunk stats: MultiplayerChunkCache: 441
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-202,64,214), Chunk: (at 6,4,6 in -13,13; contains blocks -208,0,208 to -193,255,223), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 1931643 game time, 569436 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 184 total; [bdw['HawkBird'/525, l='MpServer', x=-168.23, y=65.62, z=174.73], rh['item.item.egg'/20085, l='MpServer', x=-235.81, y=64.13, z=118.50], qg['Bat'/21385, l='MpServer', x=-118.94, y=43.34, z=249.95], sj['Zombie'/21376, l='MpServer', x=-111.50, y=45.00, z=247.50], qg['Bat'/21382, l='MpServer', x=-164.25, y=25.10, z=249.25], sj['Zombie'/20884, l='MpServer', x=-232.50, y=76.00, z=184.50], sf['Skeleton'/20881, l='MpServer', x=-203.50, y=41.00, z=196.50], sf['Skeleton'/21413, l='MpServer', x=-166.50, y=72.00, z=246.50], rh['item.item.egg'/16586, l='MpServer', x=-147.25, y=64.13, z=194.91], qg['Bat'/21457, l='MpServer', x=-188.25, y=40.81, z=229.46], sj['Zombie'/20959, l='MpServer', x=-230.72, y=65.00, z=103.50], rv['Enderman'/20956, l='MpServer', x=-129.47, y=39.00, z=249.38], rh['item.item.egg'/21488, l='MpServer', x=-146.63, y=64.13, z=196.97], sj['Zombie'/4441, l='MpServer', x=-152.31, y=51.00, z=178.64], sj['Zombie'/21484, l='MpServer', x=-139.50, y=29.00, z=233.50], sj['Zombie'/21485, l='MpServer', x=-138.78, y=27.00, z=226.88], sj['Zombie'/21486, l='MpServer', x=-142.50, y=29.00, z=235.50], sj['Zombie'/21487, l='MpServer', x=-199.50, y=36.00, z=213.50], rh['item.item.egg'/19501, l='MpServer', x=-219.28, y=67.13, z=155.97], qi['Chicken'/115, l='MpServer', x=-241.41, y=70.00, z=116.53], qi['Chicken'/114, l='MpServer', x=-242.72, y=67.00, z=112.66], qi['Chicken'/113, l='MpServer', x=-242.16, y=67.00, z=111.91], ru['Creeper'/17109, l='MpServer', x=-167.94, y=45.00, z=192.56], qn['Pig'/123, l='MpServer', x=-251.03, y=81.00, z=181.34], qi['Chicken'/120, l='MpServer', x=-246.53, y=58.00, z=157.47], qi['Chicken'/143, l='MpServer', x=-238.47, y=70.00, z=115.91], sj['Zombie'/21273, l='MpServer', x=-179.13, y=43.00, z=225.50], qi['Chicken'/157, l='MpServer', x=-223.41, y=64.00, z=111.44], qi['Chicken'/144, l='MpServer', x=-239.44, y=61.00, z=142.44], qn['Pig'/146, l='MpServer', x=-235.47, y=65.00, z=130.31], qi['Chicken'/147, l='MpServer', x=-221.63, y=64.00, z=150.47], qi['Chicken'/149, l='MpServer', x=-230.47, y=76.00, z=164.53], qn['Pig'/150, l='MpServer', x=-224.53, y=65.00, z=240.50], qi['Chicken'/171, l='MpServer', x=-209.38, y=65.00, z=161.03], qi['Chicken'/169, l='MpServer', x=-221.56, y=53.28, z=164.44], qn['Pig'/174, l='MpServer', x=-212.81, y=64.00, z=247.78], qi['Chicken'/173, l='MpServer', x=-218.44, y=70.00, z=160.38], qi['Chicken'/172, l='MpServer', x=-209.53, y=65.00, z=160.34], ru['Creeper'/21304, l='MpServer', x=-119.50, y=46.00, z=242.50], rh['item.item.egg'/19089, l='MpServer', x=-222.19, y=53.13, z=163.91], ru['Creeper'/21306, l='MpServer', x=-125.50, y=46.00, z=240.50], qi['Chicken'/165, l='MpServer', x=-222.44, y=66.00, z=157.41], qi['Chicken'/164, l='MpServer', x=-223.44, y=55.00, z=157.53], qi['Chicken'/187, l='MpServer', x=-187.47, y=60.00, z=109.72], qq['Snow Golem'/185, l='MpServer', x=-200.50, y=64.00, z=207.50], qi['Chicken'/188, l='MpServer', x=-182.44, y=52.00, z=106.09], qi['Chicken'/189, l='MpServer', x=-182.63, y=55.00, z=104.47], qn['Pig'/179, l='MpServer', x=-185.91, y=66.00, z=123.88], qi['Chicken'/177, l='MpServer', x=-203.53, y=64.00, z=95.41], ru['Creeper'/9406, l='MpServer', x=-159.34, y=48.00, z=169.97], sm['Villager'/205, l='MpServer', x=-139.50, y=64.00, z=184.09], sm['Villager'/204, l='MpServer', x=-181.31, y=63.00, z=199.69], sm['Villager'/207, l='MpServer', x=-188.50, y=60.00, z=214.30], sm['Villager'/206, l='MpServer', x=-139.50, y=64.00, z=184.94], sm['Villager'/201, l='MpServer', x=-181.31, y=63.00, z=201.66], sm['Villager'/203, l='MpServer', x=-179.50, y=63.00, z=201.50], sm['Villager'/202, l='MpServer', x=-179.53, y=63.00, z=199.69], qg['Bat'/15739, l='MpServer', x=-188.91, y=55.10, z=186.69], sm['Villager'/217, l='MpServer', x=-170.50, y=63.00, z=158.50], sm['Villager'/218, l='MpServer', x=-172.50, y=63.00, z=158.50], qj['Cow'/14279, l='MpServer', x=-147.13, y=64.00, z=198.88], sm['Villager'/219, l='MpServer', x=-168.31, y=63.00, z=158.31], qi['Chicken'/213, l='MpServer', x=-174.47, y=56.00, z=103.47], qi['Chicken'/214, l='MpServer', x=-160.47, y=66.00, z=119.53], rh['item.item.egg'/20136, l='MpServer', x=-142.94, y=64.13, z=197.72], qi['Chicken'/14652, l='MpServer', x=-142.72, y=64.00, z=195.28], sm['Villager'/239, l='MpServer', x=-156.34, y=64.00, z=195.47], ru['Creeper'/20116, l='MpServer', x=-207.03, y=27.00, z=153.38], qu['Wolf'/235, l='MpServer', x=-170.44, y=64.00, z=190.91], qg['Bat'/21361, l='MpServer', x=-118.56, y=20.10, z=222.25], qu['Wolf'/234, l='MpServer', x=-164.66, y=64.00, z=194.50], qu['Wolf'/232, l='MpServer', x=-169.63, y=64.00, z=188.84], qi['Chicken'/14600, l='MpServer', x=-147.28, y=64.00, z=194.72], sf['Skeleton'/21374, l='MpServer', x=-185.50, y=55.00, z=117.50], sf['Skeleton'/21375, l='MpServer', x=-187.31, y=52.00, z=111.88], qj['Cow'/14328, l='MpServer', x=-144.67, y=64.00, z=200.95], rh['item.item.egg'/19148, l='MpServer', x=-143.78, y=64.13, z=197.56], sj['Zombie'/15711, l='MpServer', x=-153.61, y=51.00, z=179.69], qi['Chicken'/248, l='MpServer', x=-148.25, y=63.00, z=95.16], qi['Chicken'/14617, l='MpServer', x=-142.72, y=64.00, z=194.72], sm['Villager'/244, l='MpServer', x=-156.31, y=64.00, z=193.50], qs['Iron Golem'/242, l='MpServer', x=-162.00, y=42.00, z=208.70], qs['Iron Golem'/243, l='MpServer', x=-160.35, y=42.00, z=209.29], sm['Villager'/240, l='MpServer', x=-153.84, y=63.00, z=226.43], sm['Villager'/241, l='MpServer', x=-155.31, y=64.00, z=195.69], sm['Villager'/275, l='MpServer', x=-155.31, y=64.00, z=194.25], qi['Chicken'/274, l='MpServer', x=-146.25, y=64.00, z=197.38], qs['Iron Golem'/273, l='MpServer', x=-150.19, y=64.00, z=196.41], qg['Bat'/21729, l='MpServer', x=-134.41, y=27.00, z=238.34], qi['Chicken'/272, l='MpServer', x=-147.22, y=64.00, z=198.22], sm['Villager'/277, l='MpServer', x=-137.78, y=64.00, z=182.50], qj['Cow'/283, l='MpServer', x=-146.19, y=64.00, z=201.91], qj['Cow'/282, l='MpServer', x=-143.09, y=64.00, z=199.69], qj['Cow'/280, l='MpServer', x=-143.69, y=64.00, z=200.88], qi['Chicken'/287, l='MpServer', x=-149.56, y=46.00, z=210.53], qs['Iron Golem'/286, l='MpServer', x=-158.61, y=42.00, z=208.70], qi['Chicken'/285, l='MpServer', x=-143.19, y=64.00, z=195.19], qi['Chicken'/284, l='MpServer', x=-146.47, y=64.00, z=194.78], rn['entity.MinecartRideable.name'/258, l='MpServer', x=-151.50, y=65.50, z=170.50], rn['entity.MinecartRideable.name'/259, l='MpServer', x=-151.50, y=65.50, z=173.50], qn['Pig'/262, l='MpServer', x=-154.50, y=64.00, z=185.50], rn['entity.MinecartRideable.name'/263, l='MpServer', x=-150.50, y=64.34, z=178.50], qn['Ubuntu'/260, l='MpServer', x=-161.09, y=65.00, z=178.19], qn['Pig'/261, l='MpServer', x=-154.50, y=64.00, z=187.50], nf['entity.ItemFrame.name'/266, l='MpServer', x=-145.06, y=93.50, z=187.50], nf['entity.ItemFrame.name'/267, l='MpServer', x=-145.06, y=93.50, z=188.50], rn['entity.MinecartRideable.name'/264, l='MpServer', x=-150.50, y=64.34, z=179.50], sm['Pillager'/265, l='MpServer', x=-159.97, y=65.00, z=180.66], bfl['Juluban'/4764, l='MpServer', x=-146.50, y=92.00, z=195.63], qo['Sheep'/270, l='MpServer', x=-150.91, y=64.00, z=200.28], qo['Sheep'/271, l='MpServer', x=-150.91, y=64.00, z=199.09], rv['Enderman'/21143, l='MpServer', x=-162.94, y=31.00, z=233.34], qs['Iron Golem'/268, l='MpServer', x=-159.00, y=98.00, z=186.00], qo['Sheep'/269, l='MpServer', x=-148.56, y=64.00, z=200.75], rh['item.item.egg'/20622, l='MpServer', x=-144.59, y=64.13, z=195.16], qn['Pig'/315, l='MpServer', x=-136.53, y=31.00, z=181.47], qs['Iron Golem'/317, l='MpServer', x=-138.38, y=67.00, z=185.58], qs['Iron Golem'/316, l='MpServer', x=-134.81, y=67.00, z=185.90], sm['Villager'/319, l='MpServer', x=-156.34, y=64.00, z=194.50], qs['Iron Golem'/318, l='MpServer', x=-137.23, y=67.00, z=188.10], sm['Villager'/288, l='MpServer', x=-152.50, y=63.00, z=221.78], sm['Villager'/289, l='MpServer', x=-154.50, y=63.00, z=221.50], sm['Villager'/290, l='MpServer', x=-154.34, y=63.00, z=220.06], sf['Skeleton'/21176, l='MpServer', x=-230.50, y=23.00, z=148.50], sm['Villager'/291, l='MpServer', x=-153.06, y=63.00, z=218.94], qi['Chicken'/293, l='MpServer', x=-166.63, y=63.00, z=220.72], sm['Villager'/294, l='MpServer', x=-173.31, y=63.00, z=200.16], sm['Villager'/295, l='MpServer', x=-136.97, y=64.00, z=182.50], sm['Villager'/296, l='MpServer', x=-155.79, y=63.00, z=228.13], qg['Bat'/21727, l='MpServer', x=-134.67, y=27.41, z=237.88], sj['Zombie'/21667, l='MpServer', x=-114.84, y=40.00, z=186.36], qi['Chicken'/350, l='MpServer', x=-131.56, y=65.00, z=180.47], sh['Spider'/21676, l='MpServer', x=-202.34, y=64.00, z=98.34], qs['Iron Golem'/349, l='MpServer', x=-115.72, y=57.00, z=180.72], rh['item.item.egg'/19712, l='MpServer', x=-150.97, y=46.13, z=210.81], sj['Zombie'/21687, l='MpServer', x=-232.50, y=77.00, z=217.50], qj['Cow'/326, l='MpServer', x=-144.34, y=64.00, z=199.13], qi['Chicken'/327, l='MpServer', x=-143.69, y=64.00, z=195.81], qi['Chicken'/324, l='MpServer', x=-147.22, y=64.00, z=197.53], sf['Skeleton'/21684, l='MpServer', x=-203.50, y=65.00, z=253.50], qi['Chicken'/325, l='MpServer', x=-146.31, y=64.00, z=198.22], qi['Chicken'/323, l='MpServer', x=-146.78, y=64.00, z=196.81], sm['Villager'/320, l='MpServer', x=-156.69, y=64.00, z=193.50], sm['Villager'/321, l='MpServer', x=-156.91, y=63.00, z=228.67], rn['entity.MinecartRideable.name'/334, l='MpServer', x=-135.50, y=87.50, z=225.50], rn['entity.MinecartRideable.name'/335, l='MpServer', x=-134.34, y=87.50, z=225.50], qi['Chicken'/332, l='MpServer', x=-142.13, y=38.30, z=210.72], sm['Villager'/333, l='MpServer', x=-141.04, y=38.49, z=209.99], qs['Iron Golem'/330, l='MpServer', x=-139.70, y=38.00, z=209.74], qs['Iron Golem'/331, l='MpServer', x=-143.28, y=38.00, z=211.30], qs['Iron Golem'/329, l='MpServer', x=-141.21, y=38.00, z=208.70], qi['Chicken'/14488, l='MpServer', x=-143.56, y=64.00, z=194.72], qj['Cow'/371, l='MpServer', x=-96.97, y=67.00, z=233.09], rh['item.item.egg'/19279, l='MpServer', x=-224.09, y=64.13, z=150.22], rh['item.item.egg'/20673, l='MpServer', x=-145.63, y=64.13, z=198.13], rh['item.item.egg'/20230, l='MpServer', x=-209.41, y=65.13, z=160.00], rh['item.item.egg'/20229, l='MpServer', x=-142.44, y=38.13, z=210.91], sj['Zombie'/21649, l='MpServer', x=-106.50, y=65.00, z=141.50], sg['Slime'/352, l='MpServer', x=-127.69, y=27.00, z=210.31], qi['Chicken'/365, l='MpServer', x=-106.47, y=62.37, z=98.44], qj['Cow'/366, l='MpServer', x=-110.31, y=67.00, z=144.28], qi['Chicken'/367, l='MpServer', x=-99.41, y=68.00, z=151.41], rh['item.item.egg'/20692, l='MpServer', x=-133.09, y=65.13, z=180.63], qj['Cow'/409, l='MpServer', x=-97.81, y=67.00, z=246.81], qj['Cow'/394, l='MpServer', x=-99.81, y=63.00, z=188.53], bfl['Juluban'/4764, l='MpServer', x=-146.50, y=92.00, z=195.63], ru['Creeper'/21582, l='MpServer', x=-109.50, y=66.00, z=174.50], ru['Creeper'/20482, l='MpServer', x=-198.50, y=64.00, z=245.50], qi['Chicken'/9656, l='MpServer', x=-146.91, y=64.00, z=197.72], sj['Zombie'/21593, l='MpServer', x=-172.84, y=43.00, z=152.46], sj['Zombie'/21594, l='MpServer', x=-170.53, y=43.00, z=153.66], sj['Zombie'/21595, l='MpServer', x=-171.33, y=43.00, z=155.79], sj['Zombie'/21596, l='MpServer', x=-172.50, y=43.00, z=156.50], rh['item.item.egg'/21597, l='MpServer', x=-230.31, y=76.13, z=166.44], rh['item.item.egg'/20509, l='MpServer', x=-222.19, y=64.13, z=112.16], rh['item.item.egg'/21049, l='MpServer', x=-187.81, y=52.13, z=114.56], ru['Creeper'/21588, l='MpServer', x=-230.97, y=24.00, z=144.59], ru['Creeper'/21059, l='MpServer', x=-113.50, y=63.00, z=124.50], rh['item.item.egg'/20580, l='MpServer', x=-222.13, y=66.13, z=156.22], sj['Zombie'/21567, l='MpServer', x=-140.50, y=64.00, z=137.50], ru['Creeper'/21553, l='MpServer', x=-143.50, y=41.00, z=246.50], ru['Creeper'/17223, l='MpServer', x=-168.09, y=51.00, z=157.69], qr['Squid'/21524, l='MpServer', x=-200.50, y=60.34, z=163.50], qr['Squid'/21525, l='MpServer', x=-196.12, y=56.78, z=162.81]]
Retry entities: 0 total; []
Stacktrace:
at bdt.a(SourceFile:282)
at net.minecraft.client.Minecraft.b(SourceFile:1881)
at net.minecraft.client.Minecraft.run(SourceFile:535)
at java.lang.Thread.run(Unknown Source)

– System Details –
Details:
Minecraft Version: 1.5.1
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_17, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 288953840 bytes (275 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 2982 (166992 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
LWJGL: 2.4.2
OpenGL: ATI Mobility Radeon HD 5650 GL version 3.2.9704 Compatibility Profile Context, ATI Technologies Inc.
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: 708 (39648 bytes; 0 MB) allocated, 17 (952 bytes; 0 MB) used

Not fixed. Happens in 1.5.1. I saw my brother's wolf just ran into a block and suffocate while playing on a server.

I have experienced this in 1.5.1. Just that I start with extremely low FPS. Around 5-20 frames per second. Then it will rise to around 10-30 fps. By setting the java program's priority to high through Task Manager, it can rise to 15-40. I am running Windows 7.

This can't be reproduced. It just happens randomly.